Nouns

(n)slavea person who is owned by someone
(n)slave, striver, hard workersomeone who works as hard as a slave
(n)slavesomeone entirely dominated by some influence or person“a slave to fashion”, “a slave to cocaine”, “his mother was his abject slave”

Verbs

(v)slave, break one's back, buckle down, knuckle downwork very hard, like a slave