This is the 5741st most frequent Japanese word.
てがける
"To manage, handle, or undertake."
てがける used in the context of being directly involved in and managing a specific activity or project.
彼は新しいプロジェクトを手がけています。
He is working on a new project.
てがける used to describe the development or handling of various products by a company or entity.
その会社は様々な分野の製品を手がけています。
That company develops products in various fields.
てがける used to convey personal involvement and skill in an activity or creation.