das Gegentor
goal conceded
A goal scored in sports by the opposing team against one's own team.
Kurz vor Spielende kassierte die Heimmannschaft ein unglückliches Gegentor.
Shortly before the end of the match, the home team conceded an unlucky goal.

goal conceded
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goal conceded
A goal scored in sports by the opposing team against one's own team.
Kurz vor Spielende kassierte die Heimmannschaft ein unglückliches Gegentor.
Shortly before the end of the match, the home team conceded an unlucky goal.

'Gegentor' (goal conceded) is made up of the preposition 'gegen' (against) and the noun 'Tor' (goal). So it describes a goal that was scored 'against' one's own team.
Die Abwehr konnte das Gegentor nicht verhindern.
The defense couldn't prevent the goal conceded.
When a team concedes a goal, the verbs typically used are 'kassieren' (to concede) or 'bekommen' (to get). The opposite is to 'verhindern' (prevent) a goal from being conceded.
Unsere Mannschaft hat in der letzten Minute ein Gegentor kassiert.
Our team conceded a goal in the last minute.
This word is used exclusively in sports, especially in team sports with goals, such as football/soccer, handball, or ice hockey.
Nach dem ersten Gegentor spielte die Mannschaft viel nervöser.
After the first goal conceded, the team played much more nervously.
gate / goal
'das Tor' and 'das Gegentor' both belong to sports language and refer to a goal that counts as a point. 'Tor' is general: it can be a goal scored by your own team or by the other team. 'Gegentor' is more specific and always means that the opposing team has scored against your own team. Learners may confuse the words because both refer to a goal. If you are speaking neutrally about a point in the game, 'Tor' fits. If you want to emphasize that your own team conceded the goal, 'Gegentor' is correct.

Kurz vor dem Ende haben wir noch ein Gegentor bekommen.
Shortly before the end, we conceded another goal.
Nach der Pause schießt Max ein wichtiges Tor für seine Mannschaft.
After the break, Max scores an important goal for his team.