Oath and Pact

Oath

Oath noun - A person's solemn declaration that he or she will do or not do something.

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Pact and oath are semantically related. In some cases you can use "Pact" instead a noun "Oath".

Pact noun - A formal agreement between two or more nations or peoples.

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Oath and pact are semantically related. Sometimes you can use "Oath" instead a noun "Pact".

special	special oath	special pact
similar	similar oath	similar pact
vile	vile oath	vile pact
binding	binding oath	binding pact
Other adjectives: powerful, actual, terrible, strict, ancient, ultimate, new, past, unspoken, military, titular, sacred, earlier, previous, magical.

Note that all examples must include an oath, pact, or other explicit bonding; if it doesn't, it's not this trope.

Source: Blood Brothers
At one point Alvin hits on the idea of a blood oath to seal their heroic pact, but not wanting to hurt his little sister, has them smear drops of iodine on their hands instead of cutting them.

Source: Blood Brothers
Xiao Yan Zi and Zi Wei made a pact to be sisters for life, but their oath was sealed with wine, not blood.

Source: Series / Princess Returning Pearl

Cite this Source

Pact and Oath. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/oath/pact

Oath & Pact. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/oath/pact>.

Pact or Oath. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/oath/pact.

Google Ngram Viewer shows how "oath" and "pact" have occurred on timeline