1. small air-breathing arthropod

Definition categories: animal, arthropod

2. a person who has a nasty or unethical character undeserving of respect

Similar word(s): louse, worm

Definition categories: person

Sentences with insect as a noun:

- Our shed has several insect infestions, including ants, yellowjackets, and wasps.

- The swamp is swarming with every sort of insect.

- The manager’s assistant was the worst sort of insect.