informant
44 synonyms for informant, grouped by meaning and by how common each one is.
Noun — A person who secretly gives confidential information to authorities, such as the police.
Synonyms
Everyday swaps
Common words most readers know — safe in any writing.
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
How to use informant
The word patterns that sound natural to a native speaker.
Etymology
From inform plus the agent-noun suffix -ant.
Full origin of informant →