noun which may take the genitive case particle 'no', noun
overhand; overarm
Used in sports contexts to describe a throwing motion or stroke where the arm moves above the shoulder.
彼はオーバーハンドでボールを投げた。
He threw the ball overhand.
テニスではオーバーハンドのサーブが基本だ。
In tennis, an overhand serve is fundamental.