call for vs ask for

call for and ask for both are verbs.

Word	Noun	Adjective	Verb	Adverb
call for	No	No	Yes	No
ask for	No	No	Yes	No

As verbs, ask for is a hypernym of call for; that is, ask for is a word with a broader meaning than call for:

Other hypernyms of call for include bespeak, call for, quest, request.

As verbs, call for and ask for are synonyms defined as:

Other synonyms of call for include bespeak, quest, request.

call for (verb)	ask for (verb)
request the participation or presence of	express the need or desire for
express the need or desire for	increase the likelihood of
gather or collect
require as useful, just, or proper