the act of abolishing or the state of being abolished; annulment
2.
(often capital) (in British territories) the ending of the slave trade (1807) or the ending of slavery (1833): accomplished after a long campaign led by William Wilberforce
3.
(often capital) (in the US) the emancipation of the slaves, accomplished by the Emancipation Proclamation issued in 1863 and ratified in 1865