noun, noun or participle which takes 'suru', intransitive verb
taking the initiative; leading the way
Used when someone acts first or sets an example for others to follow. Often appears as 率先して (adverbially) or 率先する (suru verb).
彼は率先して会議の準備を始めた。
He took the initiative and started preparing for the meeting.
リーダーは率先して手本
A leader should take the lead and set an example.