adj.
Function: adverb
Date: before 12th century
1 a : with great or utmost effort or energy : STRENUOUSLY <were hard at work> <the children played hard > b : in a violent manner : FIERCELY c : to the full extent ― usually used in nautical directions <steer hard aport> d : to an immoderate degree <hitting the bottle hard > e : in a searching, close, or concentrated manner <stared hard at me>
2 a : in such a manner as to cause hardship, difficulty, or pain b : with rancor, bitterness, or grief <took the defeat hard >
3 : in a firm manner : TIGHTLY
4 : to the point of hardness <frozen hard >
5 : close in time or space <stands hard by the river>