Whom-Whome | Commonly Confused Words

Whome

Used instead of 'whom' when following a preposition or as an object pronoun.

A word used instead of 'who' in certain grammatical contexts, often to refer to the object of a verb or preposition

But by whom?And the name of the family with whom she lived.Who were those with whom I played?

This word has no antonyms

Whom is used in formal writing as the object of a verb or preposition.
Whome is not a standard word in English and is likely a misspelling of whom.
Remember that whom often follows prepositions like to, for, or with.
If you can replace the word with him/her in the same structure, whom is likely correct.
Think of whom as tied to actions – it is who is receiving the action, rather than doing it.