Definition of ensure in English:



[with object]
  • 1Make certain that (something) will occur or be the case.

    with clause ‘the client must ensure that accurate records are kept’
    • ‘They must also take action to ensure the system is not used for money laundering.’
    • ‘Use of an electronic device ensures collection of accurate, rapidly accessible spirometric data.’
    • ‘Their small size ensures a level of intimacy not found in larger establishments.’
    • ‘One of the many checks we do is to ensure mail is coming from actual registered domains.’
    • ‘The software also ensures each site has ecommerce hosting and a secure server for credit card transactions.’
    • ‘He is responsible for ensuring the thousands of results are recorded correctly.’
    • ‘So exfoliate and moisturise to ensure an even application and an accurate skin tone.’
    • ‘If you must do something, try ensuring the quality of company information improves instead.’
    • ‘He checks the dustbins behind his shops to ensure fresh produce is not being discarded.’
    • ‘He did not wish to elaborate on the forensic breakthrough but said he remained focused on ensuring justice was done.’
    • ‘He is credited with ensuring that government funding for education was not siphoned off for other purposes.’
    • ‘We must now ensure that ending sexism is addressed as part of the debates about the future.’
    • ‘Is it ethical to end life when we are not sure that this will help to ensure the safety of our society?’
    • ‘To establish balance within ourselves ensures our own welfare and the welfare of society.’
    • ‘True enough, yet it also ensures any accurate commentary can be posted as well.’
    • ‘Dog owners must by law ensure their pet wears a collar and tag with their name and address on it.’
    • ‘Due to annual visits to all member establishments, quality control was ensured.’
    • ‘It recommends that leaders should consider ensuring their place in history in other ways.’
    • ‘This guarantee ensures the full value is repayable should any structural issues arise.’
    • ‘As with any new event it will be important to ensure the pace notes are accurate.’
    make sure, make certain, see to it
    View synonyms
    1. 1.1 Make certain of obtaining or providing (something)
      ‘legislation to ensure equal opportunities for all’
      • ‘He must ensure their safety and welfare and will act as a contact in forced marriage cases.’
      • ‘The incident has prompted police to warn parents to ensure the safety of children in cars.’
      • ‘Such a measure would help in ensuring participation of everyone in the drive, they added.’
      • ‘Ushering harmony in society is the first step towards ensuring peace in the entire country.’
      • ‘Decentralisation of power is the key to ensuring smooth conduct of examinations.’
      • ‘Legislation has been passed in many countries geared to ensuring gender balance.’
      • ‘To be so selective is to go some way towards ensuring the self-fulfilment of his prophecy.’
      • ‘It is our goal to establish a lasting relationship with you, ensuring a home that always lives up to your ideal.’
      • ‘John's focus was ensuring the stability and future success of the brewing premises.’
      • ‘Coaches tell players to make sure they land on their stomachs to ensure a speedy play on the ball.’
      safeguard, protect, guard, shield, shelter, fortify, make invulnerable
      View synonyms
    2. 1.2ensure againstno object Make sure that (a problem) does not occur.
      ‘only by researching stocks thoroughly can a client ensure against being misled’
      • ‘If affordable, car owners should have their own officially licensed emission test devices to ensure against possible police accusations of unsatisfactory results.’
      • ‘The studios test, poll, cajole, advertise, and inveigh in an effort to ensure against failure.’
      • ‘It was therefore up to them to ensure against a collapse and they did so convincingly.’
      • ‘I don't know if there is a direct corelation between the results of the health check and the joining fee, but it would be a good way to ensure against death on the treadmill.’
      • ‘One of the ways to ensure against endangering your children in cold weather is to know whether it's too cold to go out, or if your child is dressed adequately.’
      • ‘With tire levers, a tube and a mini-pump, you're ensured against most road- or trail-side breakdowns.’
      • ‘The object of the contract is to ensure against accidental death and injuries, and the contract must not be construed so as to defeat that object, nor so as to render it practically illusory.’
      • ‘The oath that voters are required to sign is enough to ensure against fraudulent voting.’
      • ‘And, to ensure against dummy candidates, the touts entertained only students with valid admission cards.’
      • ‘Each hive was allowed at least 30 min to cool between trials, and the ‘hot’ section was staggered between trials to ensure against an undetected preference for a given hive location.’
      • ‘The estimate is said to create a liability distinct from the underlying actual liability to remit amounts, and it is combined with provisions, including subsection of that section, that ensure against double payment.’
      • ‘The provision ensures against impugning acquisition in these circumstances.’
      • ‘This is an organisation where there is opportunity to enjoy your leisure, learn a new skill, enjoy an old one and pass on your valuable experience of life to others and, in so doing, ensure against loneliness and boredom.’
      • ‘Under this piece of legislation employers (as owners or occupiers) have a general duty to ensure against the outbreak of fire in their premises.’
      • ‘Second, there are literally trillions of dollars of credit guarantees that have been created in this melee of reckless credit creation, supposedly ensuring against investor losses.’
      • ‘Commercial relationships should be continually monitored to ensure against inappropriate exploitation of the organization's name or reputation and undue interference or influence of commercial interests.’
      • ‘However, it has set out ten modifications to the proposed scheme, which include design amendments to the proposed road surface to ensure against flooding.’
      • ‘Keeping customers' data confidential involves using tools that ensure against data leakage but, just as importantly, it calls for employee awareness and other non-technical measures, he says.’
      • ‘Only the engine driver who had this permit could travel the track, thus ensuring against meeting another train coming in the opposite direction.’
      • ‘The primary responsibility for ensuring against abuse must rest with faculty peers, and must begin with rigorous hiring practices.’


On the difference between ensure and insure, see insure


Late Middle English (in the senses ‘convince’ and ‘make safe’): from Anglo-Norman French enseurer, alteration of Old French aseurer, earlier form of assurer (see assure). Compare with insure.