To exchange or swap things with each other; to trade one thing for another.
子供たちはカードを取り替えて遊んでいる。
The kids are swapping cards and playing.
古い切手と新しい切手を取り替えた。
I exchanged old stamps for new ones.
席を取り替えて窓側に座った。
I swapped seats and sat by the window.
To replace something broken or worn with a new one; to substitute a part or item.
電池が切れたので、リモコンの電池を取り替えた。
The batteries ran out, so I replaced the remote control's batteries.
靴の裏がすり減ったので、底を取り替えに出した。
The soles of my shoes were worn out, so I took them to have the soles replaced.
壊れた部品を新しいものに取り替えれば、機械はまた動くはずだ。
If you replace the broken part with a new one, the machine should work again.