You use actually to indicate that a situation exists or happened, or to emphasize that it is true. Discover everything about the word " ACTUALLY " in English: meanings, translations, synonyms, pronunciations, examples, and grammar insights - all in one comprehensive guide. actually (not comparable) (modal) In act or in fact; really; in truth; positively. His promises did not correspond with what he actually did. The meaning of ACTUALLY is in act or in fact : really. How to use actually in a sentence.