significant

1. 1

   Signifying something; carrying meaning.

   • a significant word or sound
   • a significant look
2. 2

   Having a noticeable or major effect.

   • That was a significant step in the right direction.
   • The First World War was a significant event.
3. 3

   Reasonably large in number or amount.

4. 4

   Having a covert or hidden meaning.

5. 5

   Having a low probability of occurring by chance (for example, having high correlation and thus likely to be related).

6. 6

   Of a digit or figure, see significant figure.

syn. important

ant. insignificant · ignorable · negligible · slight

1. 1

   That which has significance; a sign; a token; a symbol.

   • In dumb significants proclaim your thoughts.
   • And in my glass significants there are