The extent to which something matters; importance / Meaning.

plural of significance

Signifying something; carrying meaning. / Having a covert or hidden meaning. / Having a noticeable or major effect. / Reasonably large in number or amount.

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

plural of significant

(dated) significance

plural of significancy

The quality of being significant.

(statistics) A measure of how likely it is to draw a false conclusion in a statistical test, when the results are really just random variations.

(statistics) A measure of how unlikely it is that a result has occurred by chance.