active list 
noun
A list of the officers in an armed service who are liable to be called on for duty.Consequently, the Royal Air Force Volunteer Reserve was formed to create a pool of aircrewmen who could be brought on to the active list as soon as war seemed imminent....
- An amorous escapade saw him placed on half pay, but he was restored to the active list to rewrite the cavalry manual, and commanded cavalry brigades at Canterbury and Aldershot.
- During the same period of time, a total of 88,000 military personnel were taken from the active list,’ Hsia said.
- water toothpick
- water torch
- water tortoise
- water torture
- water tower
- Watertown
- water toy
- water transport
- water treader
- water treatment
- water tree
- water trompe
- water tube
- water-tube boiler
- water tunnel
- water tupelo
- water turbine
- water-tyrant
- water under the bridge (or water over the dam)
- water vapor
- water vapour
- water-vascular
- water-vascular system
- water vessel
- Waterville