- product topology
- product transformation
- product-type
- product uniformity
- product uniform space
- product variety
- product σ-algebra
- profile
- profile line
- profile plane
- profile projection
- profinite
- profinite completion
- profinite group
- profinite group completion
- profundity
- progenerator
- progeny
- prognosis
- program
- program control
- programed
- programed absorption set
- programed grammar
- programer