signal vs symbol

symbol vs signal

signal and symbol both are nouns.

signal is an adjective but symbol is not an adjective.

signal is a verb but symbol is not a verb.

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

As nouns, symbol is a hyponym of signal; that is, symbol is a word with a more specific, narrower meaning than signal:

signal: any nonverbal action or gesture that encodes a message
symbol: an arbitrary sign (written or printed) that has acquired a conventional significance

Other hyponyms of signal include recording, number, phone number, telephone number, start, starting signal, storm signal, beam, radio beam, ticktack, time signal, dog-ear, animal communication, alarm, alarum, alert, warning signal, distress call, distress signal, all clear, bugle call, curfew, retreat, drumbeat, radiotelegraphic signal, telegraphic signal, whistle, whistling, high sign, visual signal, indicator, electronic signal, radio beacon, input, input signal, output, output signal.

signal (noun)	symbol (noun)
any nonverbal action or gesture that encodes a message	something visible that by association or convention represents something else that is invisible
any incitement to action	an arbitrary sign (written or printed) that has acquired a conventional significance
an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes

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

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

Difference between signal and symbol

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