ration

Short definition from Wiktionary

Noun

1. 1
   A portion of some limited resource, especially food, allocated to a person or group.

Verb

1. 1
   To supply with a ration; to limit (someone) to a specific allowance of something.
2. 2
   To portion out (especially during a shortage of supply); to limit access to.
3. 3
   To restrict (an activity etc.)