reserve

1 reserve /rɪˈzɚv/ verb
reserves; reserved; reserving
1 reserve
/rɪˈzɚv/
verb
reserves; reserved; reserving
Britannica Dictionary definition of RESERVE
[+ object]
1 
: to make arrangements so that you will be able to use or have (something, such as a room, table, or seat) at a later time
2 
: to keep (something) for a special or future use
3 
: to choose to do (something) at a later time : defer
4 
: to have or keep (something, such as a right) for possible use at a future time
2 reserve /rɪˈzɚv/ noun
plural reserves
2 reserve
/rɪˈzɚv/
noun
plural reserves
Britannica Dictionary definition of RESERVE
1 
[count] : a supply of something that is stored so that it can be used at a later time
2 
[count] : a military force that is additional to the regular forces and that is available if it is needed — often plural
3 
[count] : an area of land where animals and plants are given special protection — see also nature reserve
4 
[count] : an area of land where Native Americans live : reservation
5 
[noncount] : the quality of a person who does not express feelings, opinions, etc., in an easy and open way
6 
[count] : a player on a team who takes the place of a regular player who is injured or cannot play

in reserve

: kept for future or special use

without reserve

: in a free and complete way