Having a covert or hidden meaning.
Reasonably large in number or amount.
Having a low probability of occurring by chance (for example, having high correlation and thus likely to be related).
Having a noticeable or major effect.
Signifying something; carrying meaning.
That which has significance; a sign; a token; a symbol.
Having depth, or the illusion of depth, as well as height and width.
Existing in three dimensions
Lifelike.