This is the 8597th most frequent Japanese word.
携わる
To be involved or engaged in.
The word 携わる is used here to denote being actively involved in an endeavor, such as a social cause or project.
彼は環境保護活動に携わっています。
He is involved in environmental protection activities.
In this sentence, 携わる expresses participating or contributing to the efforts of a specific project.
私はこのプロジェクトに携わることができて嬉しいです。
I am glad to be able to participate in this project.
Here, 携わる signifies a long-term involvement or dedication to a professional or personal pursuit.