pest

pest is a   Noun

Definition:

[1] A fatal epidemic disease; a pestilence; specif., the plague. England`s sufferings by that scourge, the pest. Cowper.

[2] Anything which resembles a pest; one who, or that which, is troublesome, noxious, mischievous, or destructive; a nuisance. "A pest and public enemy." South.

Synonyms: