trimmer vs worker

trimmer and worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
trimmer	Yes	No	No	No
worker	Yes	No	No	No

As nouns, worker is a hypernym of trimmer; that is, worker is a word with a broader meaning than trimmer:

trimmer (noun)	worker (noun)
joist that receives the end of a header in floor or roof framing in order to leave an opening for a staircase or chimney etc.	sterile member of a colony of social insects that forages for food and cares for the larvae
capacitor having variable capacitance; used for making fine adjustments	a person who works at a specific occupation
a machine that trims timber	a member of the working class (not necessarily employed)
a worker who thins out and trims trees and shrubs	a person who acts and gets things done