worker
US /ˈwɝː.kɚ/
UK /ˈwɝː.kɚ/

1.
a person who does a particular job or who works in a particular way
:
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She is a hard worker and always meets deadlines.
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The factory employs many skilled workers.
2.
a sterile female ant, bee, wasp, or termite, specialized to perform any of the tasks of the colony other than reproduction
:
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The worker bees collect nectar and pollen.
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An ant colony relies heavily on its workers for foraging and nest maintenance.