Entry 1 sense Webster, 1913 Kindergartner /kĭn'-dẽrg-ärˌ-tnẽr/ · Kin·der·gart·ner · IPA /ˈkɪndɚˌɡɑrtnɚ/ 01 n. One who teaches in a kindergarten. 1. One who teaches in a kindergarten.