Advanced English (2) • NOUNS • 'O'

noun [C ] C1 medical (US informal OB) • synonyms: maternity doctor, childbirth specialist • consult/see/work with an obstetrician • obstetrician delivers/monitors/treats during pregnancy • freq in AmE: 6/10

a medical doctor who specializes in pregnancy, childbirth, and the postpartum period; often works closely with gynecologists and midwives

noun [U ] C2 • synonyms: tyranny, injustice, domination, repression • (oppression of minorities/women/emotions); fight/resist/end oppression • freq in AmE: 7/10

prolonged cruel or unjust treatment or control; a state in which people are subject to harsh authority, systemic injustice, or psychological domination — often used in political, historical, and emotional contexts