serve

mate with

“male animals serve the females for breeding purposes”

spend time in prison or in a labor camp

provide (usually but not necessarily food)

“We serve meals for the homeless”

contribute or conduce to

“The scandal served to increase his popularity”

devote (part of) one's life or efforts to, as of countries, institutions, or ideas

“She served the art of music”

do duty or hold offices; serve in a specific function

“He served as head of the department for three years”

do military service

“She served in Vietnam”

put the ball into play

“It was Agassi's turn to serve”

be used by; as of a utility

“The sewage plant served the neighboring communities”

be sufficient; be adequate, either in quality or quantity

“Nothing else will serve”

work for or be a servant to

“May I serve you?”