speech disorder vs disorder

speech disorder and disorder both are nouns.

Word	Noun	Adjective	Verb	Adverb
speech disorder	Yes	No	No	No
disorder	Yes	No	Yes	No

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

speech disorder: a disorder of oral speech
disorder: a physical condition in which there is a disturbance of normal functioning

Other hypernyms of speech disorder include upset.

speech disorder (noun)	disorder (noun)
a disorder of oral speech	a disturbance of the peace or of public order
	a condition in which things are not in their expected places
	a physical condition in which there is a disturbance of normal functioning

speech disorder (verb)	disorder (verb)
	bring disorder to
	disturb in mind or make uneasy or cause to be worried or alarmed