This is the 611th most frequent French word.
défaite
Defeat.
Here, 'défaite' is used in the context of a loss in a competition or game.
Après une défaite difficile, l'équipe a décidé de s'entraîner plus dur.
After a tough defeat, the team decided to train harder.
In this sentence, 'défaite' refers to the defeat of an idea or argument, metaphorically.
La défaite de cet argument rend sa position moins convaincante.
The defeat of this argument makes his position less convincing.
In this case, 'défaite' is used to describe a general failure or loss, often in life situations.