Yonker in English dictionary yonker Meanings and definitions of "Yonker" Obsolete spelling of younker. noun Obsolete spelling of [i]younker[/i] more Grammar and declension of Yonker yonker ( plural yonkers) yonker (plural yonkers) more Yonker Sample sentences with "Yonker" Declension Stem Try again Available translations Arabic Esan Persian Authors