Synonyms of 'slave'
1 servantDictionary, serf, vassal
still living as slaves in the desert
toilDictionary, labour, grind (informal)
slaving over a hot stove
Boys toiled in the hot sun to finish the wall.
peasants labouring in the fields
I really don't enjoy grafting away in a stuffy office all day.
While slogging at your work, have you neglected your marriage?
work your fingers to the bone
work your guts out
keep your nose to the grindstone
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If you describe someone as a drudge, you mean they have to work hard at a job which is not very important or interesting.
She felt like a household drudge.
Thesaurus for slave from the Collins English Thesaurus
A slave is someone who is the property of another person and has to work for that person.