slaveryPronunciation: /ˈsleɪv(ə)ri/Translate slavery | into French | into German | into Italian | into Spanish Definition of slavery noun [mass noun] the state of being a slave:thousands had been sold into slavery the practice or system of owning slaves: he was resolved to impose a number of reforms, including the abolition of slavery a condition of having to work very hard without proper remuneration or appreciation:female domestic slavery excessive dependence on or devotion to something:slavery to traditionslavery in other Oxford dictionaries Definition of slavery in the US English dictionary