sure

Meanings

Adjective

• Physically secure and certain, non-failing, reliable.
• Certain in one's knowledge or belief.
• Certain to act or be a specified way.
• Free from danger; safe; secure.
• Betrothed; engaged to marry.

Adverb

• Without doubt, certainly.
• Without fail, surely.

Interjection

• Yes, .
• Yes; of course.
• You're welcome; .

Related

Similar words

• certain, failsafe, reliable, sicker
• certain, positive, wis
• OK, yes

Origin

• From Middle English sure, seur, sur, from Middle French sur or Old French seür, from Latin sēcūrus ("secure"), from sē- + cūra (compare Old English orsorg ("carefree"), from or- + sorg). See cure. secure and the now obsolete or dialectal sicker.
• Displaced native Middle English wis ("certain, sure") (from Old English gewiss ("certain, sure")), Middle English siker ("sure, secure") (from Old English sicor ("secure, sure")) with which was cognate.