spoon
コーヒーにさじ一杯の砂糖を入れた。
I added one spoonful of sugar to the coffee.
大きなさじでカレーをかき混ぜた。
I stirred the curry with a large spoon.
医者もさじを投げるほどの難病だった。
It was such a difficult illness that even doctors gave up.