lexical set

Noun

 * 1)  A group of words that share a particular phonological feature.

Usage notes

 * This term often designates the standard lexical sets for English introduced in 1982 by . They are based on the pronunciation of the vowels of their stressed syllables in reference accents: KIT vowel (/ɪ/), DRESS vowel (/e/ or /ɛ/), and so on.