English Dictionary

Fitted or designed to signify or make known somethingl having a meaning; standing as a sign or token; expressive or suggestive; as, a significant word or sound; a significant look.
Source : opted (141428)  - auto

Deserving to be considered; important; momentous; as, a significant event.
Source : opted (141429)  - auto

That which has significance; a sign; a token; a symbol.
Source : opted (141430)  - auto