stepdaughter
Refers to a daughter from a spouse's previous relationship. Neutral term.
His stepdaughter will graduate from high school next year.
Cooking with my stepdaughter is my weekend pleasure.
Standard kanji spelling for 'stepdaughter'.
Mixed kanji-kana spelling, sometimes used for clarity or in less formal writing.
Compound of 継 (まま, 'step-', from the idea of 'continuing' a family line) and 娘 (むすめ, 'daughter'). The reading まま is an old prefix for step-relationships.