This is the 17548th most frequent Russian word.
тренировку
"Тренировку" means "training" or "workout" in English.
The word 'тренировку' is in the accusative case, indicating the object of the verb 'провёл' (conducted).
Я провёл тренировку по плаванию вчера.
I conducted a swimming training session yesterday.
The word 'тренировки' is in the genitive case, denoting possession or association, referring to what is needed for the training.
Для тренировки требуется специальное оборудование.
Special equipment is required for training.
The word 'тренировку' is in the accusative case, indicating the destination of action due to the verb 'идём' (going).