hang on vs expect

hang on and expect both are verbs.

Word	Noun	Adjective	Verb	Adverb
hang on	No	No	Yes	No
expect	No	No	Yes	No

As verbs, expect is a hypernym of hang on; that is, expect is a word with a broader meaning than hang on:

Other hypernyms of hang on include await, look, wait.

hang on (verb)	expect (verb)
be persistent, refuse to stop	be pregnant with
hold the phone line open	look forward to the birth of a child
fix to; attach	regard something as probable or likely
	look forward to the probable occurrence of
	consider reasonable or due
	consider obligatory; request and expect