- informant, source - a person who supplies information
--1 is a kind of communicator
--1 has particulars:informer, betrayer, rat, squealer, blabber; leaker; passive source; whistle blower, whistle-blower, whistleblower Derived form: verb inform1 - witness, witnesser, informant - someone who sees an event and reports what happened
--2 is a kind of perceiver, observer, beholder; speaker, talker, utterer, verbalizer, verbaliser
--2 has particulars: attester, attestant; testifier, deponentDerived form: verb inform1