sterile member of a colony of social insects that forages for food and cares for the larvae | 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. |
a person who works at a specific occupation | capacitor having variable capacitance; used for making fine adjustments |
a member of the working class (not necessarily employed) | a machine that trims timber |
a person who acts and gets things done | a worker who thins out and trims trees and shrubs |