put in vs hold on

put in and hold on both are verbs.

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

As verbs, hold on is a hypernym of put in; that is, hold on is a word with a broader meaning than put in:

Other hypernyms of put in include keep.

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