Sitting; the state or act of sitting (used as a noun referring to posture or the fact of sitting).
長時間の座りっぱなしは健康に良くない。
Sitting for long periods without getting up is not good for your health.
この椅子は座りがいいので長時間でも楽だ。
This chair is comfortable to sit in, so it's pleasant even for long periods.
赤ちゃんの座りがまだ不安定なので目を離せない。
The baby can't sit steadily yet, so I can't take my eyes off them.
Stability or steadiness — used to describe how firmly something is established or how settled it is (e.g., sales, business).
新商品の売れ行きはまだ座りが悪く、宣伝が必要だ。
The new product’s sales are not stable yet; promotion is necessary.
この取引が座れば会社の経営は楽になるはずだ。
Once this deal is settled, the company's management should become easier.