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volunteer (B1)

カタカナ: ボランティア

IPA: /ˌvɒlənˈtɪər/

To offer to do something or to go somewhere without being asked or paid, often to help others or for a cause.

意味: 頼まれたり報酬をもらったりすることなく、誰かのためや目的のために、自分から進んで何かをしたりどこかへ行ったりすること。

He decided to volunteer his time to help build houses for the homeless. — He decided to volunteer his time to help build houses for the homeless.
Many students volunteer to tutor younger children after school. — Many students volunteer to tutor younger children after school.
She volunteered to lead the fundraising committee for the local charity. — She volunteered to lead the fundraising committee for the local charity.

Japanese translations of Volunteer:

volunteer for (prepositional phrase): To offer to do a task or join an activity. — "She volunteered for the position of team captain."
volunteer to do (prepositional phrase): To offer to perform a specific action. — "He volunteered to drive the carpool."
volunteer as (prepositional phrase): To offer one's services in a particular role. — "She decided to volunteer as a tutor for the local school."