to set forth, give, render (service), perform, fulfill, express, say, do

to be set forth, given, rendered (service), performed, fulfilled, expressed, said, done

mail, postal service

at someone's service, submitting, devoted, obedient, obeying

to be sacrificed, to be offered/at someone’s service

hard labor, toil, effort, exertion

to work hard, exert, toil

poverty, toil

labour, toil, job, work, (often daily) wage-earning