expression, godan verb (-ku)
let down one's hair; undo one's hair
Refers to releasing hair from a tied or pinned style, letting it fall loose. Often used in literary or descriptive contexts.
彼女は鏡の前で髪を解いた。
She let down her hair in front of the mirror.
風呂上がりに髪を解いて乾かす。
After a bath, I undo my hair and dry it.