to dye / to color; to paint; to blush / (手を染める) to set about; to be involved with / (筆を染める) to start writing

attaches to the continuative form (連用形) of a verb: to get the color or smell through something (＝染み込ませる)

the color red

(formal) Female third-person singular pronoun; she, her, girlfriend

(colloquial) a girlfriend (a female partner in a romantic relationship)

(literary) they (about women or girls)

hair on the head

hair

頭: head

(literary) they (about women or girls)