English Reference
adjective · adverb · interjection

sure

adj. · adv. · interj.
US /ˈʃʊɹ/ UK /ʃˈɔː/ sure

  1. 01 B2 Upper Intermediate

    adj.reliable and not likely to fail.

    adj.physically secure, reliable, or unfailing in performance.

    Simple

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

    In context

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

  2. 02 B1 Intermediate InformalAmerican English

    adv.used to emphasize that something is definitely true.

    adv.used as an intensifier to express certainty or emphasis.

    Simple

    It sure is hot outside today.

    In context

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

  3. 03 A1 Beginner Informal

    interj.a way to say yes or agree to a request.

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

    Simple

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

    In context

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

    no
  4. 04 A2 Elementary InformalAmerican English

    interj.a polite way to answer when someone says thank you.

    interj.used as a phatic response to an expression of gratitude.

    Simple

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

    In context

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

    no problemyou're welcome

Usage sure to read


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.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin sēcūrus
Level A1 · Beginner
Frequency Very common
Updated