ration
Word family
Synonym discussion
Sense: noun/1
All four words refer to a fixed share of something, but they differ in tone and context. 'Allowance' focuses on what is permitted or granted, often regularly (e.g. a child's weekly allowance or a travel expense allowance). 'Quota' implies a target or minimum required amount, often in production, sales, or immigration contexts (e.g. hiring quotas). 'Allotment' is the most neutral term for a share that has been assigned, whether of time, land, or tasks. 'Ration' stands apart because it carries a strong sense of scarcity and official control — you ration things when there simply is not enough for everyone. For example: 'The soldiers received their daily food ration' has a wartime urgency that 'daily food allotment' lacks. In everyday conversation, you might say 'I've had my ration of problems this week' as a figure of speech, but you would not say 'my quota of problems' in the same informal way.
Common collocations
Etymology
The word 'ration' entered English in the mid-18th century from French 'ration', which came from Latin 'rationem' (meaning a reckoning, calculation, or portion). The Latin root is also the source of 'ratio' and 'rational'. The military sense — a daily food allowance for soldiers — became common during the Napoleonic Wars in the early 1800s, and the verb sense 'to limit supplies by controlled distribution' developed during the World Wars of the 20th century when governments rationed food, fuel, and clothing across entire populations.