Sure Definition

sho͝or, shûr

surer, surest

adjective

surer, surest

That will not fail; always effective.

A sure method.

Webster's New World

Having or showing no doubt; positive; confident.

To be sure of one's facts.

Webster's New World

That can be relied upon; trustworthy.

A sure friend.

Webster's New World

That cannot be doubted, questioned, or disputed; absolutely true; certain.

Webster's New World

That can be counted on to be or happen.

A sure defeat.

Webster's New World

Synonyms:

Antonyms:

adverb

Surely; inevitably.

Webster's New World

Certainly; indeed.

Webster's New World

(modal adverb) Without doubt.

Sure he's coming! Why wouldn't he?

"Did you kill that bear yourself? "•"I sure did!"

Wiktionary

Synonyms:

interjection

Of course; I understand; OK.

Webster's New World

Synonyms:

idiom

for sure

Certainly; unquestionably:
We'll win for sure.

American Heritage

make sure

To establish something without doubt; make certain:
Make sure he writes it down.

American Heritage

sure enough

As one might have expected; certainly.

American Heritage

to be sure

Indeed; certainly.

American Heritage

for sure

certain(ly); without doubt

Webster's New World

Other Word Forms of Sure

Adjective

Base Form:

sure

Comparative:

surer

Superlative:

surest

Idioms, Phrasal Verbs Related to Sure

Origin of Sure

From Middle English sure, sur, from Middle French sur, from Old French seür, from Latin sÄ“cÅ«rus (“secure", literally “carefree"), from se (“apart") + cura (“care") (compare Old English orsorg (“carefree"), from or- (“without") + sorg (“care")). See cure. Displaced native Middle English wis, iwis (“certain, sure") (from Old English Ä¡ewis, Ä¡ewiss (“certain, sure")), Middle English siker (“sure, secure") (from Old English sicor (“secure, sure")).

From Wiktionary
Middle English from Old French safe from Latin sēcūrus secure

From American Heritage Dictionary of the English Language, 5th Edition