slip by vs move on

slip by and move on both are verbs.

Word	Noun	Adjective	Verb	Adverb
slip by	No	No	Yes	No
move on	No	No	Yes	No

As verbs, move on is a hypernym of slip by; that is, move on is a word with a broader meaning than slip by:

Other hypernyms of slip by include advance, go on, march on, pass on, progress.

slip by (verb)	move on (verb)
for time to move forward	move forward, also in the metaphorical sense