From WordNet (r) 3.0 (2006):
reserve
n 1: formality and propriety of manner [syn: modesty,
reserve]
2: something kept back or saved for future use or a special
purpose [syn: reserve, backlog, stockpile]
3: an athlete who plays only when a starter on the team is
replaced [syn: substitute, reserve, second-stringer]
4: (medicine) potential capacity to respond in order to maintain
vital functions
5: a district that is reserved for particular purpose [syn:
reservation, reserve]
6: armed forces that are not on active duty but can be called in
an emergency [syn: military reserve, reserve]
7: the trait of being uncommunicative; not volunteering anything
more than necessary [syn: reserve, reticence,
taciturnity]
v 1: hold back or set aside, especially for future use or
contingency; "they held back their applause in
anticipation"
2: give or assign a resource to a particular person or cause; "I
will earmark this money for your research"; "She sets aside
time for meditation every day" [syn: allow, appropriate,
earmark, set aside, reserve]
3: obtain or arrange (for oneself) in advance; "We managed to
reserve a table at Maxim's"
4: arrange for and reserve (something for someone else) in
advance; "reserve me a seat on a flight"; "The agent booked
tickets to the show for the whole family"; "please hold a
table at Maxim's" [syn: reserve, hold, book]