hold on vs put in

hold on and put in both are verbs.

Word	Noun	Adjective	Verb	Adverb
hold on	No	No	Yes	No
put in	No	No	Yes	No

As verbs, put in is a hyponym of hold on; that is, put in is a word with a more specific, narrower meaning than hold on:

hold on (verb)	put in (verb)
be persistent, refuse to stop	place, fit, or thrust (something) into another thing
stop and wait, as if awaiting further instructions or developments	break into a conversation
hold the phone line open	to insert between other elements
hold firmly	make an application as for a job or funding
retain possession of	set up for use
	keep or lay aside for future use