Question

the noun ____ means a set amount of time in which you do something — often work of some sort. \she served a __ in the army, followed by a ____ in an office setting, before settling on a career as a lounge singer.\ spell the word:

Explanation:

The context describes a set - amount of time for work. The word "stint" means a fixed period of time during which a person does a particular job or activity. It fits the blanks in the given sentences.

Answer:

stint