In card games, the highest or lowest card depending on the game.
If you draw an ace in cards, your chances of winning are high.
In poker, the ace is the strongest card.
ace (player); star player; top performer
Refers to the best player on a team, especially in sports like baseball, or more broadly to an outstanding person in any field.
He is performing well as the ace of the team.
The ace of the sales department achieved the top results again this month.
In tennis and similar sports, a serve that the opponent cannot return. Often referred to as サービスエース.
See also: サービスエース
He hit 10 aces in the match.
He became the team's ace when he was a third-year student.
She scored an ace with her serve.
Used because playing cards like the ace (エース) are thin, flat objects, which are typically counted with 枚 (まい).
From English 'ace'.