send for vs hail

send for is not a noun while hail is a noun.

Word	Noun	Adjective	Verb	Adverb
send for	No	No	Yes	No
hail	Yes	No	Yes	No

As verbs, hail is a hyponym of send for; that is, hail is a word with a more specific, narrower meaning than send for:

Other hyponyms of send for include cite, summon, summons, beep, call back, recall, call in, lift, muster, summon, call up, mobilise, mobilize, rally.

send for (noun)	hail (noun)
	enthusiastic greeting
	many objects thrown forcefully through the air
	precipitation of ice pellets when there are strong rising air currents

send for (verb)	hail (verb)
order, request, or command to come	greet enthusiastically or joyfully
	call for
	praise vociferously
	be a native of
	precipitate as small ice particles