Each; respectively — indicates individual items or people taken separately (e.g., "A and B did X and Y, respectively").
出席者はそれぞれ自己紹介をした。
Each attendee introduced themselves.
リンゴとミカンはそれぞれ一つずつください。
Please give me one apple and one mandarin, respectively.
学生たちはそれぞれの理由をノートに書いた。
The students wrote down their respective reasons in their notebooks.
夫々（それぞれ）意見が違うから、よく話し合おう。
Because everyone has different opinions, let's discuss it thoroughly.