for sure

F f

Definitions of for sure words

adjective for sure free from doubt as to the reliability, character, action, etc., of something: to be sure of one's data. 1
adjective for sure confident, as of something expected: sure of success. 1
adjective for sure convinced, fully persuaded, or positive: to be sure of a person's guilt. 1
adjective for sure assured or certain beyond question: a sure victory. 1
adjective for sure worthy of confidence; reliable; stable: a sure messenger. 1
adjective for sure unfailing; never disappointing expectations: a sure cure. 1

before 1300

One of the 15% oldest English words

1300-50; Middle English sur(e) < Middle French sur, Old French seur < Latin sēcūrus secure

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

A common word. It’s meaning is known to most children of preschool age. About 97% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

This diagram is provided by Google Ngram Viewer

certainly — You use certainly to emphasize what you are saying when you are making a statement.
really — in reality; actually: to see things as they really are.
sure thing — something that is or is supposed to be a certain success, as a bet or a business venture: He thinks that real estate is a sure thing.
unquestionably — not open to question; beyond doubt or dispute; indisputable; undeniable; certain: an unquestionable fact.
for certain — free from doubt or reservation; confident; sure: I am certain he will come.