孩儿 hái'ér child Definitions Defs Origin Strokes Stroke Words Sentences Sents hái'ér child 孩 hái noun child (bound form) child; children; refers to a person from birth to puberty or the beginning of adulthood儿 兒 r particleaffix [erhua suffix] A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.hái'ér I 孩 hái noun child (bound form) child; children; refers to a person from birth to puberty or the beginning of adulthood儿 兒 ér my child (of a child) I, your child (self-reference used when speaking to parents); (of a parent) you, my child (used when addressing one's child)