This is the 2283rd most frequent Spanish word.
perdieron
"Perdieron" means "they lost" in English.
In this sentence, 'perdieron' is used to indicate an action in the past where the subject (they) misplaced something (the keys).
Ellos perdieron las llaves del coche.
They lost the car keys.
Here, 'perdieron' is used in the context of a competition, meaning the subject (players) did not win the game.
Los jugadores perdieron el partido de fútbol ayer.
The players lost the soccer match yesterday.
'Perdieron' in this case refers to the inability to catch transportation in time, showcasing another contextual usage of the verb 'perder' in the past tense.