Meaning of “significant” - Learner’s Dictionary

significant

adjective uk us /sɪɡˈnɪfɪkənt/

B2 important or noticeable:

These measures will save a significant amount of money.
It is significant that Falkner did not attend the meeting himself.
→ Opposite insignificant
significantly adverb

(Definition of “significant” from the Cambridge Learner’s Dictionary © Cambridge University Press)