time lag vs pause

time lag and pause both are nouns.

Word	Noun	Adjective	Verb	Adverb
time lag	Yes	No	No	No
pause	Yes	No	Yes	No

As nouns, pause is a hypernym of time lag; that is, pause is a word with a broader meaning than time lag:

time lag: time during which some action is awaited
pause: a time interval during which there is a temporary cessation of something

Other hypernyms of time lag include break, intermission, interruption, suspension.

time lag (noun)	pause (noun)
time during which some action is awaited	temporary inactivity
	a time interval during which there is a temporary cessation of something

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