Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “oath”

oath

noun [C] uk   /əʊθ/ us    /oʊθ/

oath noun [C] (PROMISE)

a promise, especially that you will tell the truth in a law court: Medieval knights took an oath of allegiance/loyalty to their lord. The witness placed her hand on the Bible and took the oath (= promised to tell the truth). be under/on oath to have formally promised to tell the truth: The judge reminded the witness that she was under oath.

oath noun [C] (SWEAR WORD)

old-fashioned an offensive word, especially one that uses a name for God: muttering/mouthing oaths
(Definition of oath from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of oath?
Add Cambridge dictionaries to your browser to your website

Definitions of “oath” in other dictionaries

Word of the Day

hello stranger

said to a person that you know but have not seen for a long time

Word of the Day

Come on – you can do it! Phrasal verbs with ‘come’.

by Liz Walter​,
November 19, 2014
As part of an occasional series on the tricky subject of phrasal verbs, this blog looks at ones formed with the verb ‘come’. If you are reading this blog, I’m sure you already know come from, as it is one of the first things you learn in class: I come from Scotland/Spain.

Read More 

silver splicer noun

November 17, 2014
informal a person who marries in later life Newly retired and now newlywed – rise of the ‘silver splicers’ Reaching pension age becomes a trigger to tie the knot as baby-boomers begin to redefine retirement

Read More