A point conceded in a game; a point given away to the opponent.
前半に失点して、そのまま敗戦した。
They conceded a goal/point in the first half and lost as it stood.
守備の乱れで失点を重ねた。
They kept conceding points because of lapses in defense.
In baseball, a run charged to the pitcher (a run that counts against the pitcher's record).
その失点は投手のコントロールミスが原因だった。
That run charged to the pitcher was caused by the pitcher's control mistake.
失点を抑えることがピッチャーの課題だ。
Preventing runs charged to the pitcher is the pitcher's task.
A blunder or mistake that causes one to lose points in evaluation; a costly error.
プレゼンでの説明不足が失点になった。
The lack of explanation in the presentation cost them points.
面接での失言は大きな失点になり得る。
A slip of the tongue in an interview can be a major blunder.