imperative form vs mood

imperative form and mood both are nouns.

Word	Noun	Adjective	Verb	Adverb
imperative form	Yes	No	No	No
mood	Yes	No	No	No

As nouns, mood is a hypernym of imperative form; that is, mood is a word with a broader meaning than imperative form:

imperative form: a mood that expresses an intention to influence the listener's behavior
mood: verb inflections that express how the action or state is conceived by the speaker

Other hypernyms of imperative form include modality, mode.

imperative form (noun)	mood (noun)
a mood that expresses an intention to influence the listener's behavior	a characteristic (habitual or relatively temporary) state of feeling
	verb inflections that express how the action or state is conceived by the speaker
	the prevailing psychological state