Groan has 4 different meanings across 2 categories:
Noun
· Verb
Noun
1
an utterance expressing pain or disapproval
2
A low, mournful sound uttered in pain or grief.
Verb
1
indicate pain, discomfort, or displeasure
"The students groaned when the professor got out the exam booklets"
"The ancient door soughed when opened"
Broader Terms (hypernyms)