[verb] [I usually + adverb or preposition] [informal]To slave is to work hard with little or no rest.We slaved (away) at the housework and got it done quickly.(humorous) I've been slaving over a hot stove (= cooking) all morning.See also enslave.
SLAVE
Meaning of SLAVE in English
Cambridge English vocab. Кембриджский английский словарь. 2012