Pest vs. Vermin — What's the Difference?

An annoying person or thing; a nuisance.

Vermin (colloquially varmint(s) or varmit(s)) are pests or nuisance animals that spread diseases or destroy crops or livestock. Since the term is defined in relation to human activities, which species are included vary by region and enterprise.

An organism, typically an insect, that sickens or annoys humans, hampers human activities, damages crops or food products, harms livestock, or causes damage to buildings.

Wild animals that are believed to be harmful to crops, farm animals, or game, or which carry disease, e.g. rodents

A deadly epidemic disease; a pestilence.

Any one of various common types of small insects or animals which cause harm and annoyance.

A pestilence, i.e. a deadly epidemic, a deadly plague.

Animals that prey on game, such as foxes or weasels.

Any destructive insect that attacks crops or livestock; an agricultural pest.

Obnoxious, or mean and offensive person or people.

An annoying person, a nuisance.

An animal, in general.

An animal regarded as a nuisance, destructive, or a parasite, vermin.

A noxious or mischievous animal; especially, noxious little animals or insects, collectively, as squirrels, rats, mice, worms, flies, lice, bugs, etc.

An invasive weed.

Hence, in contempt, noxious human beings.

A fatal epidemic disease; a pestilence; specif., the plague.

An irritating or obnoxious person

Anything which resembles a pest; one who, or that which, is troublesome, noxious, mischievous, or destructive; a nuisance.

Any of various small animals or insects that are pests; e.g. cockroaches or rats

A persistently annoying person