noun
work clothes; workwear; boilersuit; overalls
General term for clothing worn for manual labor, factory work, or other physical tasks. Can refer to coveralls, uniforms, or durable work garments.
工場では作業服の着用が義務付けられている。
Wearing work clothes is mandatory in the factory.
新しい作業服は動きやすくて気
I like the new workwear because it's easy to move in.
つなぎ is a one-piece coverall or jumpsuit, often a type of 作業服, but 作業服 can also include separate tops and bottoms.
Compound of 作業 (work, operation) and 服 (clothes).