Ration

RATION noun

[ C ] uk/ˈræʃən/ us
the amount of something that you are allowed to have when there is little of it available

паек, рацион, норма
a food/petrol ration
ration verb [ T ] uk/ˈræʃən/ us
to give people only a small amount of something because there is little of it available

нормировать
They might have to start ration ing water.