The act or role of guarding or protecting someone/something; in sports or fighting, blocking/defending against an opponent's attack or the player who performs that role.
昨日の試合で彼はポイントガードとして活躍した。
He played an active role as point guard in yesterday's game.
入口で警備員が来客をガードしている。
A security guard is guarding visitors at the entrance.
ボクシングでは、相手の攻撃をガードするのが大切だ。
In boxing, it's important to guard against the opponent's attacks.