informing vs speech act

informing and speech act both are nouns.

Word	Noun	Adjective	Verb	Adverb
informing	Yes	No	No	No
speech act	Yes	No	No	No

As nouns, speech act is a hypernym of informing; that is, speech act is a word with a broader meaning than informing:

informing (noun)	speech act (noun)
a speech act that conveys information	the use of language to perform some act
to furnish incriminating evidence to an officer of the law (usually in return for favors)