noun, used as a suffix, noun
Noun suffix used in compounds like 男児 (boy), 女児 (girl), 幼児 (infant), or as a standalone noun in formal contexts.
男児が公園で遊んでいる。
A boy is playing in the park.
この幼稚園には多くの幼児が通っている。
Many infants attend this kindergarten.
pronoun
Archaic first-person pronoun used by children when addressing parents or elders. Not used in modern Japanese.
「児は母上のお手伝いをいたします」と昔の子どもは言った。
A child in the old days would say, 'I will help you, Mother.'