noun
playing alone; solitary play; solitaire
Refers to playing by oneself, either as a child's independent play or a single-player game like solitaire.
子供が一人遊びに夢中になっている。
The child is absorbed in playing alone.
トランプで一人遊びをする。
I play solitaire with cards.
Standard kanji spelling.
Mixed kana-kanji spelling, common in everyday writing.
Alternate kanji for ひとり, slightly more literary.
Verb phrase meaning 'to play by oneself'; 一人遊び is the noun form.
Compound of 一人 (ひとり, 'one person') and 遊び (あそび, 'play').