- in a way or as a fact that is important and deserves attention:Significantly, Australia was a nation born in peacetime, not war.
- by a relatively great amount or to a relatively high degree:She seems to have grown significantly as a character—her decisions are more mature, for one thing.
- in a way that carries special, secret, or private meaning:The detective looked significantly at the collection of pills on the table, but said nothing.
- in a way or to a degree that is unlikely to occur by chance and therefore indicates a systematic cause:These results show that sleep significantly affects memory organization, even in the infant brain.
