allocation vs ration

allocation

noun
  • That which is allocated; allowance, entitlement. 

  • Restriction of an embryonic cell and its clonal descendents to a particular cell type or body region 

  • The process or procedure for allocating things, especially money or other resources. 

ration

noun
  • A portion of some limited resource allocated to a person or group. 

verb
  • To supply with a ration; to limit (someone) to a specific allowance of something. 

  • To restrict (an activity etc.) 

  • To portion out (especially during a shortage of supply); to limit access to. 

How often have the words allocation and ration occurred in a corpus of books? (source: Google Ngram Viewer )