glottal catch vs plosive

glottal catch and plosive both are nouns.

Word	Noun	Adjective	Verb	Adverb
glottal catch	Yes	No	No	No
plosive	Yes	No	No	No

As nouns, plosive is a hypernym of glottal catch; that is, plosive is a word with a broader meaning than glottal catch:

glottal catch: a stop consonant articulated by releasing pressure at the glottis; as in the sudden onset of a vowel
plosive: a consonant produced by stopping the flow of air at some point and suddenly releasing it

Other hypernyms of glottal catch include occlusive, plosive consonant, plosive speech sound, stop, stop consonant.

glottal catch (noun)	plosive (noun)
a stop consonant articulated by releasing pressure at the glottis; as in the sudden onset of a vowel	a consonant produced by stopping the flow of air at some point and suddenly releasing it