The meaning of REALLY is in reality : actually. How to use really in a sentence.

This room is really hot. That's really interesting. It's a really difficult decision. "Did you like it? Not really (= no)."

Discover everything about the word "REALLY" in English: meanings, translations, synonyms, pronunciations, examples, and grammar insights - all in one comprehensive guide.

WordReference Random House Learner's Dictionary of American English © 2026 re•al•ly /ˈriəli, ˈrili/ adv. actually: sees things as they really are. genuinely; truly: a really hot day. indeed: Really, this is too …

Define really. really synonyms, really pronunciation, really translation, English dictionary definition of really. adv. 1. In actual truth or fact: There isn't really a lake there; it's just a mirage.

REALLY definition: in reality; actually. See examples of really used in a sentence.

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

You use really when you are discussing the real facts about something, in contrast to the ones someone wants you to believe. My father didn't really love her.

Definition of really adverb in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

This room is really hot. That's really interesting. It's a really difficult decision. "Did you like it? Not really (= no)."