pause vs time-out

pause and time-out both are nouns.

Word	Noun	Adjective	Verb	Adverb
pause	Yes	No	Yes	No
time-out	Yes	No	No	No

As nouns, time-out is a hyponym of pause; that is, time-out is a word with a more specific, narrower meaning than pause:

pause: a time interval during which there is a temporary cessation of something
time-out: a brief suspension of play

pause (noun)	time-out (noun)
temporary inactivity	a brief suspension of play
a time interval during which there is a temporary cessation of something

pause (verb)	time-out (verb)
cease an action temporarily
interrupt temporarily an activity before continuing