fedai /fɛdʌɪˈiː/ noun2 •(historical) An Ismaili Muslim assassin; also (later), a killer in the same tradition. •(rare) A member of the fedayeen; a dedicated guerrilla fighter.Enver […] received other Young Turk fedaî officers at his base camp in Ayn al-Mansur. — 2015 formsfedais