| noun | formality and propriety of manner |
| noun | something kept back or saved for future use or a special purpose |
| noun | an athlete who plays only when a starter on the team is replaced |
| noun | (medicine) potential capacity to respond in order to maintain vital functions |
| noun | a district that is reserved for particular purpose |
| noun | armed forces that are not on active duty but can be called in an emergency |
| noun | the trait of being uncommunicative; not volunteering anything more than necessary |
| verb | hold back or set aside, especially for future use or contingency “they held back their applause in anticipation” |
| verb | give or assign a resource to a particular person or cause “I will earmark this money for your research” |
| verb | obtain or arrange (for oneself) in advance “We managed to reserve a table at Maxim's” |
| verb | arrange for and reserve (something for someone else) in advance “reserve me a seat on a flight” |
| reserve | verb | give or assign a resource to a particular person or cause |
| backlog | verb | accumulate and create a backlog |
| stockpile | verb | have on hand |
| substitute | adjective | capable of substituting in any of several positions on a team |
| substitute | verb | act as a substitute |
| reservist | noun | a member of a military reserve |
| reticent | adjective | temperamentally disinclined to talk |
| taciturn | adjective | habitually reserved and uncommunicative |
| reserve | noun | something kept back or saved for future use or a special purpose |
| reservation | noun | the act of keeping back or setting aside for some future occasion |
| allowance | noun | an amount allowed or granted (as during a given period) |
| appropriable | adjective | that can be appropriated |
| earmark | noun | a distinctive characteristic or attribute |
| bookable | adjective | subject to being reserved or booked |
| booking | noun | the act of reserving (a place or passage) or engaging the services of (a person or group) |