fricative vs continuant

fricative and continuant both are nouns.

Word	Noun	Adjective	Verb	Adverb
fricative	Yes	Yes	No	No
continuant	Yes	Yes	No	No

As adjectives, fricative and continuant are synonyms defined as:

fricative and continuant: of speech sounds produced by forcing air through a constricted passage (as `f', `s', `z', or `th' in both `thin' and `then')

Other synonyms of fricative include sibilant, spirant, strident.

As nouns, continuant is a hypernym of fricative; that is, continuant is a word with a broader meaning than fricative:

fricative: a continuant consonant produced by breath moving against a narrowing of the vocal tract
continuant: consonant articulated by constricting (but not closing) the vocal tract

Other hypernyms of fricative include continuant consonant.

fricative (noun)	continuant (noun)
a continuant consonant produced by breath moving against a narrowing of the vocal tract	consonant articulated by constricting (but not closing) the vocal tract

fricative (adjective)	continuant (adjective)
of speech sounds produced by forcing air through a constricted passage (as `f', `s', `z', or `th' in both `thin' and `then')	of speech sounds produced by forcing air through a constricted passage (as `f', `s', `z', or `th' in both `thin' and `then')