To come true or be fulfilled (of a wish, prayer, etc.).
子どもの頃の夢がついに叶った。
The dream I had as a child finally came true.
彼女の願いは叶わなかったが、新しい道が開けた。
Her wish did not come true, but a new path opened up.
みんなの協力で計画が叶った。
The plan was realized thanks to everyone's cooperation.
To suit or meet (a purpose, ideal, standard); to be appropriate or in accordance with something.
この部屋の広さは勉強部屋としての用途に適っている。
The size of this room is suitable for use as a study room.
その意見は道理に適っていると思う。
I think that opinion is in accordance with reason.
規格に適う製品だけが出荷される。
Only products that meet the standards are shipped.
To match or rival (someone or something) or to withstand (e.g., heat); often used in negative forms to mean 'cannot match.'
彼の速さには敵わない。
I can't match his speed.
古い機械は最新の設備には敵わない。
Old machines can't compete with the latest equipment.
この布は強い日差しには敵わないので、すぐに色あせる。
This fabric can't withstand strong sunlight, so it fades quickly.