ENGLISH
REFERENCE

sure

adj. · adv. · interj.
US //ˈʃʊɹ// UK //ʃˈɔː// sure
  1. 1 reliable or steady (adj.)
    B2 Upper Intermediate

    reliable and not likely to fail.

    physically secure, reliable, or unfailing in performance.

    Example

    The mountain climber had a sure grip on the rocky ledge.

    Example

    The surgeon operated with a sure hand, demonstrating the precision that comes from decades of clinical experience.

  2. 2 certainly (adv.)
    B1 Intermediate Informal American English

    used to emphasize that something is definitely true.

    used as an intensifier to express certainty or emphasis.

    Example

    It sure is hot outside today.

    Example

    While the results were unexpected, they sure provided the research team with plenty of data to analyze over the winter.

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  1. 3 yes or of course (interj.)
    A1 Beginner Informal

    a way to say yes or agree to a request.

    used to express agreement, consent, or a positive response to a request.

    Example

    "Can I borrow your pen?" "Sure, here you go."

    Example

    "Would you be willing to review the draft before the meeting?" "Sure, just send it over whenever you are ready."

  2. 4 you're welcome (interj.)
    A2 Elementary Informal American English

    a polite way to answer when someone says thank you.

    used as a phatic response to an expression of gratitude.

    Example

    "Thanks for the ride home." "Sure, no problem at all."

    Example

    "I really appreciate you helping me move those boxes." "Sure, I was happy to help."

Origin

From Middle English sure, seur, sur, from Middle French sur or Old French seür, from Latin sēcūrus (“secure”, literally “carefree”), from sē- (“apart”) + cūra (“care”) (compare Old English orsorg (“carefree”), from or- (“without”) + sorg (“care”)). See cure. Doublet of secure and the now obsolete or dialectal sicker (“certain, safe”). Displaced native Middle English wis, iwis (“certain, sure”) (from Old English ġewis, ġewiss (“certain, sure”)), as well as Middle English siker (“sure, secure”) (from Old English sicor (“secure, sure”)) with which it was cognate.

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