free-fire zone 
(frēfīr)
(frēfīr)n.
A battle area or combat zone in which no restrictions are placed on the use of arms or explosives.
- proceeding
- procephalic
- procercoid
- process
- process
- procession
- processional
- processionally
- processor
- process printing
- prochlorperazine
- pro-choice
- pro-choicer
- proclaim
- proclaimer
- proclaim from the housetops
- proclamation
- proclamatory
- proclisis
- proclitic
- procliticization
- procliticize
- proclivity
- Procne
- procoagulant