Main definitions of flex in English

: flex1flex2

flex1

verb

[WITH OBJECT]
  • 1Bend (a limb or joint)

    ‘she saw him flex his ankle and wince’
    • ‘The boy gingerly flexed his fingers; testing out his healed hand… everything seemed fine.’
    • ‘I sat up slowly from my huddled position in the corner, flexing my pained ankle experimentally, and my movement caught the attention of my protector.’
    • ‘Throughout the match he struggled to unleash the ball in excess of 100 mph, and more than once he flexed the troublesome joint while grimacing in pain.’
    • ‘Then flex your wrists to bring your fingertips toward your chest.’
    • ‘As you flex your ankle, knee, and hip, your core will fall forward.’
    • ‘She groaned as she flexed her right ankle, it figured, she'd twisted it when she fell.’
    • ‘He listens to my belly, then takes me by the ankle, extending and flexing my hip.’
    • ‘Kel gingerly flexed the fingers of her right hand while her mind raced for an answer.’
    • ‘As you initiate your turn your leg should be long with your hips up. Work the turn from there by flexing your ankles first then your knees next until you reach the end of your turn.’
    • ‘Gently flex your left foot and rotate your hip outward so that your foot is pointing to 11 o'clock.’
    • ‘All these bones articulate with other bones and are able to make tiny interdependent movements, as well as bend or flex themselves.’
    • ‘As you flex your ankles, knees and hips, the angle of your front shin with the ground should match the angle of your spine with the ground.’
    • ‘Over the last few days I've been thinking about all the things I won't be able to do with the limb; flex my ankle, wiggle my toes, point my foot left and right.’
    • ‘He flexed his ankle, silently thanking God that it had held out thus far in the evening.’
    • ‘Bend the main joint, flex another smaller joint to propel the body forward, then stop the motion by repeating it again.’
    • ‘And yes, while the splendour of Holme oaks, Magnolia grandiflora, Acacia and Eucalyptus is undisputed, they must be allowed room to flex their limbs to best advantage.’
    • ‘Land softly by flexing your ankles, as if you were in a second floor apartment and didn't want to wake your neighbors downstairs.’
    • ‘Exercising the calf muscles every half hour while seated by spending a few minutes flexing and rotating the ankles is also recommended to reduce the effects of stasis.’
    • ‘Sitting at one of the long plastic tables in the cafeteria, Chelsea Stanford takes the opportunity to flex her ankle a few times.’
    • ‘Thanks to exercise classes, an eighty-something tests a newly replaced knee and another happily flexes both arthritic ankles.’
    1. 1.1no object (of a limb or joint) become bent.
      ‘prevent the damaged wrist from flexing’
      • ‘With feet flexed and hands protruding from the fabric, dancers' limbs were indistinguishable from each other.’
      • ‘My fingers flexed into fists and my fists pressed into my thighs as I counted to ten.’
      • ‘She reached up with both hands and captured his face, her fingers flexing on his skin.’
      • ‘Beginning and intermediate skaters tend to flex more at the waist with little bend in the ankles.’
      • ‘His arm soon extended fully, and his hand was slowly flexing.’
      • ‘Her breath caught in her chest as her hands flexed, the fingers tingled.’
      • ‘He moaned slightly, his wings flexing involuntarily, sending a few feathers swirling around them.’
      • ‘Stepping out of his dark blue 1976 convertible, David walked slowly up the driveway, steadily ignoring the way his left hand flexed in and out of a fist.’
      • ‘His hands flexed into fists at his sides before the fingers slowly relaxed.’
      • ‘The man-beast pounced and her left hand flexed out in panic, she had nothing planned.’
      • ‘He hung there suspended, his wings flexed to three-quarters of their span, and then fully spread as the wind bore him away.’
      • ‘She braided them tightly, pulling until her fingers turned white against the rope and her arms flexed and shook.’
      • ‘The soldier's ankle flexed - a sign that the stimulator had found the nerves serving the injured area.’
      • ‘Bat wings flexed with anticipation and forked prehensile tails of slick amphibian flesh twitched behind them.’
      • ‘His wings itched to be shown, and his hands flexed and unflexed into fists, as he forced himself not to step in.’
      • ‘Brazen anger flashed into her eyes, hands flexing into fists.’
      • ‘Her fingers flexed like the arms and legs of a ballet dancer, fingernails glossy pink, although never polished or buffed.’
      • ‘Simultaneously, he thrusts his shooting arm to full extension, his hand and fingers flexing downward at the wrist in order to impart a gentle backspin as the ball is released.’
      • ‘The arm remains extended throughout the aerial phase until it flexes slightly at touchdown.’
      • ‘The stiff plastic keeps your ankles flexed forward and prevents you from turning your ankles out or in.’
      bend, curve, crook, hook, cock, angle, kink, buckle, double up
      View synonyms
    2. 1.2 Cause (a muscle) to stand out by contracting or tensing it.
      ‘bodybuilders flexing their muscles’
      • ‘Every day, as part of my idiosyncratic diet and fitness regime, I jog past Muscle Beach on my way to the pizza parlour - while muscular guys flex their pecs at me in disgust.’
      • ‘The farm lobby and employers in other industries are now flexing their muscle even more - hoping to expand the number of guestworkers and relax the rules currently in place.’
      • ‘Builders in this country (if they can find enough of them) are well known for flexing their muscle for extra money when things are running late, over budget and completion is near.’
      • ‘Williams also enjoys flexing her acting muscles.’
      • ‘The muscular fellow grinned at the women gathered on both sides of the cheetah and then flexed his muscles.’
      • ‘The sun rose from behind the buildings, like a troll flexing his muscles.’
      • ‘I stand on my tip-toes and flex every muscle in my body that I can.’
      • ‘Flex your biceps throughout each rep to make the movement stricter and harder.’
      • ‘Five of my football buddies and I stood hunched over flexing our biceps.’
      • ‘But in his spare time the fitness fan endures a gruelling exercise and diet regime to ensure he is a top-class body-builder and he is now in the process of flexing his pecs to take on Europe and the World.’
      • ‘This had been a clear case of the Bulls flexing their considerable muscle (and finding new muscles they didn't think they had) ahead of this week's grudge match against the Rhinos.’
      • ‘Ask a five-year-old to ‘make a muscle,’ and he'll automatically flex his biceps.’
      • ‘‘I'm rich beyond my wildest dreams,’ he told the gathered throng, flexing the muscles and exercising the tattoos exposed by his Motley Crue singlet.’
      • ‘Anyway, Josh ran his fingers through his golden curls and subtly flexed his biceps.’
      • ‘But it is eerily impressive, like watching a brilliant young bodybuilder flexing his steroidal muscles.’
      • ‘Loveable cartoon character Popeye always flexes his biceps when he wants to show off his muscles.’
      • ‘My Dad kept an old photo in his sock drawer of himself on muscle-beach, shirtless, flexing his biceps…’
      • ‘Analysts say the former body builder and Hollywood icon is flexing political muscles not seen for years in California.’
      • ‘Paul was standing in front of a mirror flexing his invisible muscles without a shirt on.’
      • ‘They stood before them, flexing their godly muscles.’
      tighten, tauten, make taut, tense, tense up, tension, contract, stiffen, brace, knot
      View synonyms
    3. 1.3no object (of a muscle) contract or be tensed.
      ‘a muscle flexed in his jaw’
      • ‘Greg could see Vincent's muscles flexing, the sword pushing out against the wires wrapping around it, stretching the metal cord.’
      • ‘He yawned and stretched, muscles flexing as he did so.’
      • ‘His muscles flexed and tensed and for a moment, Lena thought that this is what the gods had made him for.’
      • ‘Jim's jaw muscle flexed and he continued to unwrap the shirt bits from Blair's arm.’
      • ‘Quinn shouted back, his muscles flexing as he forced Rolandon back onto the door.’
      • ‘Muscles flexing, waiting, twitching, he has pounced on a starling, dispatched it with a single bite, and carried the limp lifeless thing away.’
      • ‘His muscles flexed to where you could see the very veins popping out.’
      • ‘I noticed how his calf muscles would flex as he pedalled.’
      • ‘Her muscles flexed at every move, growing tired.’
      • ‘Slowly but surely the pale man, his muscles flexing under tight pale skin, walked to me.’
      • ‘The man continued to stare, the muscles of his jaw flexing.’
      • ‘His tears became his master, his chest heaved, his muscles flexed and tightened, his teeth clenched threatening to break his jaw bone.’
      • ‘In the dull, blue silence, time slows, muscles twist and flex, ribs contract.’
      • ‘He was still standing there when she went back into her room, his arms crossed, the thick muscles of his biceps flexing.’
      • ‘Next, you're warm because that big heart muscle is flexing maybe two, three times a second.’
      • ‘Paula said you have a muscle flexing in your throat.’
      • ‘Start with your body motionless, your legs hanging down and your abs slightly flexed.’
      • ‘Rockus appeared through the doorway, his muscles flexing with adrenaline.’
      • ‘She feels his muscles flexing from time to time across her skin and he can feel her soft fur.’
      • ‘End the movement with the dumbbell over your upper chest and with your pec muscles flexed as hard as possible.’
    4. 1.4no object (of a material) be capable of warping or bending and then reverting to shape.
      ‘set windows in rubber so they flex during an earthquake’
      • ‘For example, when pushing RAM into any of the slots, the board will flex alarmingly due to not being supported on the extreme right side.’
      • ‘I could hear it sing out and howl as the metals within twisted and bent, flexing with the current.’
      • ‘A collective puff of expelled breath flexed through the courtyard, liberated pirates rubbing their eyes to be certain the welcome, if not morbid, sight was real.’
      • ‘When metal flexes, it makes noise, like a metal clicker toy.’
      • ‘Over time, as the boot leather flexes, stiffness decreases.’
      • ‘I recall a car that flexed and twisted around corners so much that it was noticeable through the steering wheel.’
      • ‘His Bilbao Guggenheim showed the potential of a seemingly incorrosible material, flexing shiny in the sun.’
      • ‘The air flexed outwards from the tip of the staff, stealing the breath from the room.’
      • ‘This does mean that you need to take a little care when plugging in drive connectors, as the board may flex a bit.’
      • ‘Any roofless car will flex in the bends and on oddly-cambered roads, and the 307 CC is no exception.’
      • ‘But when magnetic force pulls on the spider, it flexes like a pie tin, snapping away from the seat to open the valve.’
      • ‘His right hand grasped slightly against the three match books, and their delicate paper flexed slightly.’
      • ‘We realized that fabric ducts would solve several of these problems because of their lower weight and because they can easily flex with building movement.’
      • ‘The same property of the material that allows it to flex under recoil will also make it return to its original position when the recoil stress is passed.’
      • ‘Members were inclined to apply the architects' description of bamboo as ‘a material that flexes but does not fracture’ to the school as a model for others.’
      • ‘Following the sound of flexing paper, there were two sharp intakes of breath and the light was mercifully aimed lower, pointing at his feet.’
      • ‘The property of elasticity allows the ball to retain kinetic energy during a collision by having the ability to flex without breaking and then return to its original shape.’
      • ‘The inner timber tracery is carried by the steel structure and will flex with the steel stems.’
      • ‘The decks expand by four centimetres, the arch can flex by eighteen depending on temperature.’
      • ‘An experienced player can tell by the stick's vibration whether or not the stick flexes too much.’
    5. 1.5usually as adjective flexedArchaeology Place (a corpse) with the legs drawn up under the chin.
      ‘a flexed burial’
      • ‘Some adults and children were subject to secondary processing after initial burial in flexed or extended positions in pits located inside the house.’
      • ‘Despite the length of the pit, the proximity of these articulated extremities and the ilium shows that the primary burial was in a flexed position prior to disturbance.’
      • ‘Based on the total burial count, this list provides a 3: 5 ratio of flexed to bundled burials.’
      • ‘They did, however, think the skeletons looked very unusual, being very highly flexed, like Peruvian mummies.’
      • ‘The mortuary program incorporated a variety of burial modes, including extended and flexed primary, bundle, and cremation.’

noun

  • The action or state of flexing.

    ‘add rigidity and eliminate brake flex’
    • ‘For starters, the chainstays and seatstays have very nice dampening properties due to their S-Bend design, yet retain their ability to deflect torsional flex.’
    • ‘It is great at fighting flex, but it's heavy, ugly (in our opinion) and offers the fewest set up options offered by threadless stems.’
    • ‘And what design considerations were made to handle any flex?’
    • ‘While we wouldn't call it a noodle, it's not stunningly stiff: If you really yank on the hoods during a tough climb or torque the drops in a sprint, you feel flex.’
    • ‘Is farther or closer better for preventing flex?’
    • ‘In addition, the heel piece locks down in such a way that it cannot prerelease due to flex of the ski, and the touring heel lifter can't be inadvertently raised while downhill skiing.’
    • ‘The Revolver features a no-link rear dropout, so the entire rear triangle swings rigidly with only slight vertical flex required to follow the shock path.’
    • ‘It is stiff, but does allow enough flex for striding.’
    • ‘It's also extremely supple and fast, boasting lots of flex and weighing just 10.2 ounces.’
    • ‘This new Kenda has low, square knobs that eliminate knob flex and give positive, predictable traction on even the hardest surfaces.’
    • ‘ICC regulations state that pace bowlers are allowed 10 degrees of flex, medium pacers 7 1/2 degrees and spinners five.’
    • ‘Surfers with experience pre-dating bodyboards are starting to re-investigate the limits of flex with custom surfmats.’
    • ‘Too much carbon wrapped around the barrel reduces the spring, making the bat too stiff, while an excess of fiberglass laid lengthwise would create too much flex.’
    • ‘There's just enough flex for smoothing out chunky, frozen corn without being too soft for belly-drag carves.’
    • ‘The design adds tremendous strength to your whitewater stroke while retaining perfect flex.’
    • ‘One's shifts are laser-sharp every time, while the other's flex sometimes causes hesitation.’
    • ‘The idea is to stabilize the scope tube and eliminate tube flex, which is still disaster for a scope.’
    • ‘It should combine a powerful butt with sufficient tip flex for casting the intended lure.’
    • ‘Different strength springs providing different degrees of flex are available and selected according to the weight of the skier, not unlike an actual cross country ski.’
    • ‘A ski this light with such forgiving flex would normally chatter out at the apex of a turn.’

Origin

Early 16th century: from Latin flex- ‘bent’, from the verb flectere.

Pronunciation

flex

/flɛks//fleks/

Main definitions of flex in English

: flex1flex2

flex2

noun

British
  • A flexible insulated cable used for carrying electric current to an appliance.

    • ‘Did someone trip over the flex and pull the plug out of the wall by mistake?’
    • ‘The centre has such unique specialities as rain leaking down flex to electric light points.’
    • ‘So then I took out one of the wires that came with the phone - there were about four miles of flex from which to choose - hard-linked the two devices and tried to forge a link with the net.’
    • ‘Electrical flex was tied around his wrists.’
    • ‘One important improvement from the earlier model is better support for the keyboard, which eliminates an annoying flex while typing.’
    • ‘The next step was to take the plug off the flex of the pump, and thread it through the exiguous drainage hole.’
    • ‘The flex from a deep fat fryer was over the hob and set the fryer alight.’
    • ‘Why do things come with black flexes when most of these things are in neutral colours?’
    • ‘I was utterly convinced that there was a 60s-style one-bar heater abandoned there, complete with electric flex.’
    • ‘He was very impressive - and cheap - and even fitted the fan that the electrician had left dangling precariously by a live flex at no extra cost.’
    • ‘Rise and fall flexes from pendant lights mean you can pull the light down for atmosphere and push up for more general light.’
    • ‘There was an electrical flex across the landing and the girl could have easily fallen down the stairs.’
    • ‘Also check the flex, to make sure it is not frayed or broken.’
    • ‘They had tied an electrical flex around the door to stop anyone entering.’
    • ‘Reading Crown Court was told that she took an electric flex intending to throttle the ripper.’
    • ‘There is little point in attempting anything practical: boiling a kettle on the living room floor is ill-advised with three pre-schoolers tugging at the flex.’
    cable, wire, lead, extension
    View synonyms

Origin

Early 20th century: abbreviation of flexible.

Pronunciation

flex

/flɛks//fleks/