Meaning : The short low gruff noise of the kind made by hogs.
Synonyms : oink
Meaning : An unskilled or low-ranking soldier or other worker.
Example :
Infantrymen in Vietnam were called grunts.
He went from grunt to chairman in six years.
Meaning : Medium-sized tropical marine food fishes that utter grunting sounds when caught.
Meaning : Issue a grunting, low, animal-like noise.
Example :
He grunted his reluctant approval.