pest

1 ENTRIES FOUND:
pest /ˈpɛst/ noun
plural pests
pest
/ˈpɛst/
noun
plural pests
Britannica Dictionary definition of PEST
[count]
1 
: an animal or insect that causes problems for people especially by damaging crops
— often used before another noun
2 
informal : a person who bothers or annoys other people