This is the 4630th most frequent German word.
trainierte
"Trainierte" means "trained" in English.
Here, "trainierte" describes the activity of enhancing one's capabilities or skills, in this case, related to vocal performance.
Sie trainierte ihre Stimme für den Gesangsauftritt.
She trained her voice for the singing performance.
Here, "trainierte" is used as a verb meaning "to exercise" or "to train oneself."
Er trainierte jeden Morgen im Fitnessstudio.
He trained every morning in the gym.
In this sentence, "trainierte" indicates the action of preparation through training for a group activity.