Learner's definition of WORKER
1 a : a person who does a particular job to earn money
b : a person who is actively involved in a particular activity— often used in combination
The company is planning to hire 200 workers.
The average worker earned $1,000 more this year.
a migrant worker
a full-time/part-time worker
2 : a person whose job does not involve managing other people 3 : a person who works in a particular way 4 : a type of bee, ant, etc., that does most of the work in a colony of insects