experience; number of times one has done something
Refers to the amount of practical experience one has accumulated, especially in a particular field or activity. Often used in phrases like 場数を踏む (to gain experience).
彼は場数が多いから、どんなトラブルにも冷静に対処できる。
He has a lot of experience, so he can handle any trouble calmly.
場数を踏むことが上達の近道だ。
Gaining practical experience is the fastest way to improve.
Compound of 場 (place, occasion) and 数 (number). Literally 'number of occasions', referring to the count of times one has been in a particular situation, hence practical experience.