noun formal promise ADJ. sacred, solemn | Hippocratic a doctor's Hippocratic oath VERB + OATH swear, take He took an oath of allegiance to his adopted country. | break, violate PREP. ~ of an oath of allegiance/loyalty in a court of law VERB + OATH administer Only a judge is allowed to administer the oath. PREP. on ~ He swore on oath that he had never seen me before. | under ~ Witnesses must testify under oath. swear word ADJ. obscene QUANT. stream, string He muttered a stream of oaths. VERB + OATH mutter, utter
Oxford Collocations Dictionary
swear/take an oath
• As children, they took an oath of friendship.
violate/break an oath
(= do something you promised not to do )
• I do not expect you to violate your oath.
be bound by an oath
(= have sworn an oath )
• These chiefs were bound to him by oaths of loyalty.
an oath of loyalty/allegiance/obedience
• They swore an oath of allegiance to the crown.
an oath of secrecy
• Anyone who joined had to swear an oath of secrecy.
the oath of office
(= the oath a government worker swears to do a job honestly and well )
ADJECTIVES/NOUN + oath
a solemn oath
(= a very serious oath )
• He swore a solemn oath never to tell.
a sacred oath
(= one you swear by God )
• Stephen swore a sacred oath to recognise Matilda as Queen.
the presidential oath
(= sworn by a new president )
• the oldest person ever to take the presidential oath for the first time
the coronation oath
(= sworn by a king or queen when they are crowned )