(idiomatic) Having difficulty hearing; somewhat deaf.

(slang, vulgar) An erection of the penis. / (slang, vulgar, figuratively) A desirous arousal based on a fascination or obsession.

(computing) To build absolute and unchangeable values into a program such that they can only be changed by modifying the source code.

Difficulty or trouble; hard times. / A burden, a source of difficulty that could impose a barrier.

(transitive) To treat (a person) badly; to subject to hardships.

Alternative spelling of hard-liner

A common surname transferred from the nickname, originally a nickname for a hardy person. / Thomas Hardy (1840-1928), English novelist and poet. / A male given name transferred from the surname.

(vulgar, slang) Tough, uncompromising and inflexible.

(vulgar, slang) A tough and combative person.

Persistent attacks and criticism causing worry and distress. / Deliberate pestering or intimidation. / (military) The use of repeated small-scale attacks to wear down an enemy force.