The meaning of PROBABLY is insofar as seems reasonably true, factual, or to be expected : without much doubt. How to use probably in a sentence.

I'll probably be home by midnight. I'm probably going - it depends on the weather. He probably didn't even notice. Probably the best thing to do is to call them before you go.

You use probably to say that a statement is very likely to be true. With a verb phrase consisting of an auxiliary verb and a main verb, put probably after the auxiliary verb.

Definition of probably adverb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

WordReference Random House Learner's Dictionary of American English © 2026 prob•a•bly /ˈprɑbəbli/ adv. (used to express the opinion that what is said is very likely to come true or be true, but that it is …

probably, adv. meanings, etymology, pronunciation and more in the Oxford English Dictionary

Probably is the adverb form of the adjective probable, meaning “very likely to occur or be true.” Probably is used when you think something will happen or turn out to be true, but you’re not certain enough to …

Jan 30, 2026 · Adverb probably (comparative more probably, superlative most probably) In all likelihood.

Probably is used to express a likelihood or the degree of uncertainty in a statement, indicating that something is likely to happen or be true, but not certain.

If you say that something is probably the case, you think that it is likely to be the case, although you are not sure.