statement vs speech act

statement and speech act both are nouns.

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

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

statement (noun)	speech act (noun)
a message that is stated or declared; a communication (oral or written) setting forth particulars or facts etc	the use of language to perform some act
a document showing credits and debits
a fact or assertion offered as evidence that something is true
(computer science) a line of code written as part of a computer program
(music) the presentation of a musical theme
a nonverbal message
the act of affirming or asserting or stating something