delator

Word: delator

Meaning:
The word delator is a noun in Spanish and refers to a person who informs against someone or denunciate, usually in a context where someone reveals secrets, betrays others, or reports illicit or wrong actions to the authorities.

Explanation:

• The term often has a negative connotation, implying betrayal or treachery.
• A delator is someone who “tells on” another person, sometimes in a secretive or underhanded manner.

Parts of the word:

• Root: del- from the verb delatar, which means "to inform on," "to betray," or "to report."
• The suffix -or is typical in Spanish to form nouns indicating “one who does” the action.

Synonyms:

• informante (informant)
• chivato (snitch, used colloquially)
• soplón (snitch, informal and often derogatory)
• denunciante (complainant, reporter)

Antonyms:

• defensor (defender)
• cómplice (accomplice, though with a more neutral or positive implication depending on context; in opposition to betrayer, but not always direct opposite)

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Summary:
A delator is someone who informs or reports on others, often in a negative sense of betraying or exposing secrets. It's closely tied to the verb delatar (to inform on), with various informal synonyms depending on context.