- Dictionary.com:
- noxious, objectionable, or disgusting animals collectively, especially those of small size that appear commonly and are difficult to control, as flies, lice, bedbugs, cockroaches, mice, and rats.
- an objectionable or obnoxious person, or such persons collectively.
- Merriam Webster:
- small common harmful or objectionable animals (such as lice or fleas) that are difficult to control.
- birds and mammals that prey on game
- animals that at a particular time and place compete (as for food) with humans or domestic animals
- an offensive person
- Wikipedia:
Vermin (colloquially varmint(s) or varmit(s)) are pests or nuisance animals that spread diseases or destroy crops, livestock, and property. Since the term is defined in relation to human activities, which species are included vary by region and enterprise.