- to make the short, deep, hoarse sound of a hog
- to make a sound like this, as in annoyance, contempt, effort, etc.
Origin of gruntMiddle English grunten from Old English grunnettan (akin to German grunzen), frequentative of grunian, to grunt from Indo-European an unverified form gru-, echoic from source Classical Latin grunnire
- the sound made in grunting
- any of a family (Haemulidae) of marine percoid fishes that grunt when removed from water
- a U.S. infantryman, orig. in the war in Vietnam
- any person having or performing a low-prestige job involving routine tasks, strenuous labor, etc.