Definition of onesie in English:

onesie

noun

  • 1A loose-fitting one-piece leisure garment covering the torso and legs:

    ‘I'd had a bath and was in my onesie ready to settle down for yet another reality TV marathon’
    • ‘Both my teenage step daughters wear not only the onesie pj’s but also going out onesies.’
    • ‘I must admit, the idea of wearing an adult onesie is somewhat intriguing.’
    • ‘I have recently jumped on the band wagon and got myself a onesie.’
    • ‘The TV star was seen in Liverpool wearing a onesie and bright orange boots.’
    • ‘Honestly, I would have to take a picture of any adult who goes out in public in a onesie.’
    • ‘Good looking models can wear anything and get away with it, but onesies definitely aren’t for everyone.’
    • ‘The winter months have set in and all I want to do is kick back in front of the roaring fire whilst sporting my brand new onesie.’
    • ‘The real problem with the onesie is not that it makes one look sexless, but that it makes one look like a child.’
    • ‘The group is fond of sporting zip-up mechanic's uniforms onstage, or "onesies," as drummer Melissa York lovingly refers to them.’
    • ‘I have often fantasized about living my entire indoor life in a cashmere onesie, with snaps up the front and footie slippers attached.’
    • ‘The church’s reception area was decorated with a number of mementos from Crystal’s life, including a tiara, framed pictures of her with loved ones, and an adult-sized pink onesie with feet.’
    • ‘Sometimes they are not pratical, but over all, I am a onesie girl.’
    • ‘It looks like the video will use lots of quick cuts and snazzy effects and feature Marcus wearing a bowtie and dancing with a whole bunch of leggy ladies in full-body onesies.’
    • ‘I'm sitting in bed wearing a onesie.’
    • ‘Every night I came home from teaching, put on my onesie, wrapped myself in a duvet, and drank tea on the couch.’
    • ‘When I drove Joe to work early in my onesie, I had to slam on my brakes and almost got rear ended.’
    • ‘Couples wearing matching onesies is creepy.’
    • ‘I like well-designed, useful things for children and parents, such as cashmere onesies for the entire family.’
    • ‘The staple denim cut-offs and printed dresses and "onesies" are spot-on for festival goers.’
    • ‘I even saw a woman wearing a tiger onesie at the train station the other day.’
  • 2North American A one-piece close-fitting lightweight garment worn by a young child, usually having sleeves but leaving the legs uncovered and fastening with press studs at the crotch.

    • ‘She handed me a yellow Carter's onesie with a soft yellow duck on the chest.’
    • ‘Onesies are very practical clothing for babies to wear.’
    • ‘Both stores are also good sources for flannel receiving blankets, pajamas, onesies, and other items that you'll want to buy in bulk.’
    • ‘As you can tell from his onesie, I exclusively breastfeed.’
    • ‘Do you experience a tingling sense of well-being when you know exactly where the 3-6 month old onesies are in your nursery?’
    • ‘One vendor was even selling a baby's pink onesie emblazoned with the New York Police Department logo.’
    • ‘Little Amy was crawling around the floor in a "Daddy's Girl" onesie.’
    • ‘By the time they bring their new little family member home, they've taken classes, read a library's worth of books, and bought enough onesies to fill an entire dresser.’
    • ‘Putting away all the blankets and baby socks and teeny tiny onesies made everything seem so real.’
    • ‘One of the photos in the slideshow was of him as a baby, sporting a onesie with Mickey Mouse on the front.’
    • ‘I find the t-shirts better than onesies, especially for diaper-changing purposes.’
    • ‘I'm sorry that I dressed you in that onesie that was too small but was still so cute that I wanted you to wear it at least one more time.’
    • ‘Organic cotton is very important for the baby clothing market and the onesie was an easy fit with the youth and baby tees that we already offered.’
    • ‘These days you can buy your baby daughter a BORN TO SHOP onesie with little pink purses on it.’
    • ‘I've decided that "experiments with gravity" would be an excellent phrase to print on a baby onesie and toddler t-shirt.’
    • ‘She gave me tips on creating a full layette and showed me some darling booties and onesies.’
    • ‘The onesies, in sets of three, will be decorated with a peace symbol, a heart, and a happy face: peace, love, and happiness.’
    • ‘We had stacks of onesies we'd bought on sale at Baby Gap.’
    • ‘My baby is 2 weeks old, and because she was 2 weeks late and nearly 10lbs, she isn't fitting into the smaller onesies very well.’
    • ‘Her baby brother loved both servings so much that he smeared them all over his face, his onesie, the kitchen floor, and the couch.’

Origin

1980s: from Onesies, a proprietary name for a garment of this type, based on one + -sy.

Pronunciation:

onesie

/ˈwʌnzi/