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

noun [C ] C1 • synonyms: appearance, performance, showing • first outing; impressive outing; poor outing; outing in the final/semifinal; weekend outing; outing of the season • freq in AmE: 5/10

a performance or appearance in a public event, especially in sports or entertainment; often refers to a single match, race, or showing, with implicit evaluation of how someone performed

noun [C or U ] C1 • synonyms: intersection, coincidence, duplication, connection, convergence • an overlap of something; an overlap between/in something; have/show/avoid overlap; time/topic/role overlap • freq in AmE: 8/10

a situation in which two or more things happen, exist, or cover the same area in part; the amount by which they share a common feature or period of time

noun [C or U ] C1 • synonyms: protest, uproar, backlash • public/international outcry; spark/provoke/cause an outcry; outcry against injustice/corruption • freq in AmE: 6/10

a strong and public expression of protest, anger, or disapproval — often in reaction to perceived injustice, offense, or controversial action

noun [C ] C1 • synonyms: familiar claim, repeated assertion, cliché • oft-heard claim about health/politics/truth; challenge/disprove/repeat an oft-heard claim; oft-heard as skeptical/formal/literary • freq in AmE: 5/10

a statement or assertion that is frequently repeated or commonly encountered, often implying that it lacks originality, depth, or credibility due to its overuse

noun [U ] C1 • synonyms: direct conflict, all-out battle, overt hostility • open warfare in politics/media/family • freq in AmE: 5/10

a state of direct, active conflict between opposing sides — whether military, political, or interpersonal — with no pretense of peace or diplomacy

noun [U ] C1 formal • synonyms: annihilation, erasure, extinction • total/symbolic/emotional obliteration; obliteration of city/memory/identity; fear/cause/face obliteration; obliteration of hope/self/history • freq in AmE: 5/10

the act of completely destroying, erasing, or wiping out something so that no trace remains; often used in military, emotional, or symbolic contexts

noun [C ] C1 informal • synonyms: eccentric, weirdo, misfit, quirky person • oddball character/idea/behavior; lovable oddball; social oddball; creative oddball; treated like an oddball; oddball genius/outsider • freq in AmE: 5/10

a person who behaves in a strange, unconventional, or eccentric way; someone who stands out due to unusual habits, ideas, or personality

noun [singular ] C1 formal • synonyms: responsibility, burden, duty • the onus is on someone to do something; shift the onus (for someone); onus of proof/decision/accountability; carry the onus; legal/ethical onus • freq in AmE: 4/10

the responsibility or duty to do something, especially to prove or justify a claim or action