This is the 14222nd most frequent German word.
hart
"Hart" means "hard" or "tough" in English.
Describing the physical property of an object being solid and rigid.
Dieser Stein ist hart.
This stone is hard.
Describing a situation as difficult or challenging.
Das war ein hartes Jahr für uns alle.
That was a hard year for all of us.
Describing the manner of performing an action with great effort or diligence.