worker
One who works: a person who performs labor for a living; traditionally, especially, manual labor.
Other meanings
A nonreproductive social insect, such as ant, bee, termite, or wasp.
A thread performing one instance of a particular task within a program.
“This FTP client spawns a separate worker for each file to be uploaded.”
Example sentences
Word history
From Middle English "werkere".
Where this comes from
This definition is adapted from “worker” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.