spirant vs fricative

spirant and fricative both are nouns.

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

As adjectives, spirant and fricative are synonyms defined as:

spirant and fricative: 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 spirant include continuant, sibilant, strident.

As nouns, spirant and fricative are synonyms defined as:

spirant and fricative: a continuant consonant produced by breath moving against a narrowing of the vocal tract

Other synonyms of spirant include fricative consonant.

spirant (noun)	fricative (noun)
a continuant consonant produced by breath moving against a narrowing of the vocal tract	a continuant consonant produced by breath moving against a narrowing of the vocal tract

spirant (adjective)	fricative (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')