is a specific kind of: sing.

derivation: singing, vocalizing | singer, vocaliser, vocalist, vocalizer | vocal.

is a specific kind of: articulate, enounce, enunciate, pronounce, say, sound out.

derivation: vowel, vowel sound.

is a specific kind of: say, state, tell.

derivation: articulation, voice | diction, enunciation | articulative, articulatory.

is a specific kind of: articulate, enounce, enunciate, pronounce, say, sound out.

is a broader term that covers: chirk | quaver, waver.

is the opposite of: devoice.

derivation: voice | phonation, vocalisation, vocalism, vocalization, voice, vox | phone, sound, speech sound | sonant, voiced sound | singer, vocaliser, vocalist, vocalizer | utterer, vocaliser, vocalizer.

is a specific kind of: mouth, speak, talk, utter, verbalise, verbalize.

derivation: utterance, vocalization | phonation, vocalisation, vocalism, vocalization, voice, vox | phone, sound, speech sound | utterer, vocaliser, vocalizer | vocal.