Synonyms of oath

oath

noun

ˈōth 

as in promise

a person's solemn declaration that he or she will do or not do something

I need your oath that you won't do anything until I've had time to make a decision

Synonyms & Similar Words

• promise
• vow
• pledge
• word
• assurance
• commitment
• troth
• obligation
• contract
• covenant
• agreement
• appointment
• engagement
• arrangement
• guarantee
• guaranty
• security
• undertaking
• token
• compact
• warranty
• bond
• gage
• deposit
• bail
• pawn

Example Sentences

Recent Examples of oath

On Thursday, the Chicago Board of Education members failed our oath to Chicago’s students, parents, families, employees and taxpayers. — Angel Gutierrez, Chicago Tribune, 3 Aug. 2026

So now poor Hugh must decide between his oaths to Rhaenyra and his wife, who stubbornly (and rather stupidly) remains. — Erik Kain, Forbes.com, 27 July 2026

After taking an oath, the legislators elected Abdul Hamid al-Awak as speaker. — Los Angeles Times, 13 July 2026

The country’s most senior generals and admirals are expected to provide unvarnished military counsel to the president and swear an oath to defend the Constitution. — Missy Ryan, The Atlantic, 10 July 2026