Territorial Army 
(In the UK) a volunteer force founded in 1908 to provide a reserve of trained and disciplined military personnel for use in an emergency. Called since 2013 Army Reserve.
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- overprecise
- over-prepare
- overprescribe
- overprescription
- overpress
- overpressed
- overpressing
- overpressure
- overpressure valve
- overprice
- overpride
- overprint
- overprivileged
- overprize
- overproduce
- overproduction
- overpronate
- overpronation
- overpronator
- overproof
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- overproportionately