δοῦλον

servant, slave; in the NT a person owned as a possession for various lengths of times (Hebrew slaves no more than seven years, Gentile slaves without time limit), of lower social status than free persons or masters; slaves could earn or purchase their freedom

a male slave, or servant, of various degrees, Matt 8,9, and frequently ; a servitor, person of mean condition, Fil 2,7 feminine δούλη, a female slave; a handmaiden, Luk 1,38, 48; ApG 2,18 δοῦλος, used figuratively, in a bad sense, one involved in moral or spiritual thraldom, Joh 8,34; Rom 6,17, 20; 1 Kor 7,23 2 Pet 2,19 in a good sense, a devoted servant or minister, ApG 16,17 Rom 1,1 one pledged or bound to serve, 1 Kor 7,22 2 Kor 4,5