hard as a rock

*hard as a rock

and *hard as stone

very hard. (*Also: as ∼.) This cake is as hard as a rock! I can't drive a nail into this wood. It's hard as stone.

Name	Pronounced	Usage
Rei	ṙe:	Japanese
Molina	[mə'li:nə]
Vic	VIK	English
VÍGdÍS	-	Ancient Scandinavian
Behar	-	Albanian
Venera	vye-NYE-rah (Russian), vee-NYE-rah (Russian)	Russian, Bulgarian, Albanian