Real Dictionary

hack
verb: If you hack something or hack at it, you cut it with strong, rough strokes using a sharp tool such as an axe or knife.

hack in American English 1
a tool for cutting or hacking, as an ax, hoe, mattock, etc.
to chop or cut crudely, roughly, or irregularly, as with a hatchet
to make rough or irregular cuts
intransitive verb: to make rough cuts or notches; deal cutting blows
transitive verb: to cut, notch, slice, chop, or sever (something) with or as with heavy, irregular blows

hack in American English 2
a horse for hire
employed as a hack
to employ as a hack
to jog along on a horse
adjective: hired as a hack; of a hired sort
intransitive verb: to drive a taxi
noun: a person, as an artist or writer, who exploits, for money, his or her creative ability or training in the production of dull, unimaginative, and trite work; one who produces banal and mediocre work in the hope of gaining commercial success in the arts
transitive verb: to make a hack of; let out for hire

hack in American English 3
a grating or rack for drying cheese or fish, holding food for cattle, etc.
to place on a hack for drying
noun: a rack for drying food, as fish

hack in British English 1
verb: to cut or chop (at) irregularly, roughly, or violently

hack in British English 2
adjective: banal, mediocre, or unoriginal
noun: a horse kept for riding or (more rarely) for driving
verb: to ride (a horse) cross-country for pleasure

hack in British English 3
to place (fodder) in a hack
noun: a rack used for fodder for livestock