1a person who works, in particular: [with adjective or noun modifier] a person who does a specified type of work or who works in a specified way:a farm worker she’s a good worker an employee, especially one who does manual or non-executive work. informal a person who works hard:I got a reputation for being a worker
) used in Marxist or leftist contexts to refer to the working class: a red flag with the inscription ‘workers of the world, unite!’ [in names]:the Hungarian Socialist Workers' Party
2a person who achieves a specified thing:he was a bogus worker of miracles
3a neuter or undeveloped female bee, wasp, ant, or other social insect, large numbers of which do the basic work of the colony.