1 (wiktionary) 2 (vi.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Verbs Nouns Adjectives/Adverbs Pronouns Prepositions Conjunctions
lengthen (Advanced search)

compensatory lengthening {n} (lengthening of a vowel which occurs when a following consonant is lost) lengthen {v} (to make longer) lengthening {n} (sound change)