signaler vs signal

signaler and signal both are nouns.

Word	Noun	Adjective	Verb	Adverb
signaler	Yes	No	No	No
signal	Yes	Yes	Yes	No

signaler (noun)	signal (noun)
someone who communicates by signals	any nonverbal action or gesture that encodes a message
	any incitement to action
	an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes

signaler (adjective)	signal (adjective)
	notably out of the ordinary

signaler (verb)	signal (verb)
	communicate silently and non-verbally by signals or signs
	be a signal for or a symptom of