reserve vs ask for

reserve is a noun but ask for is not a noun.

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

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

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

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

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

reserve (noun)	ask for (noun)
the trait of being uncommunicative; not volunteering anything more than necessary
formality and propriety of manner
armed forces that are not on active duty but can be called in an emergency
a district that is reserved for particular purpose
an athlete who plays only when a starter on the team is replaced
something kept back or saved for future use or a special purpose
(medicine) potential capacity to respond in order to maintain vital functions

reserve (verb)	ask for (verb)
give or assign a resource to a particular person or cause	express the need or desire for
obtain or arrange (for oneself) in advance	increase the likelihood of
hold back or set aside, especially for future use or contingency
arrange for and reserve (something for someone else) in advance