- penetration record
- penetrator
- penmanship
- penning
- penning gate
- Pension fund
- penstock footing
- pent rafter
- pentagonal
- pentahedral
- pentahedron
- pentastyles
- pentode
- penumbra
- percent fines
- perch bolt
- percolation cylinder
- percolation pressure
- percolation test
- percussion
- percussion drill
- percussion welding
- percussive tool
- perennial stream
- perfect elastic
- perfect elasticity
- perfect hinge
- perfectly elastic
- perforate
- perforated
- perforated beam
- perforated breakwater
- perforated brick
- perforated ceiling
- perforated joint
- perforated rolls
- perforated slab
- perforation
- perforator
- performance test
- perimeter beam
- perimeter grouting
- perimeter trench
- perimeter wall
- period architecture
- periodic
- periodic check
- periodic load
- periodic maintenance
- periodic repair
- periodic sample
- periodical pulse
- peripheral equipment
- peripheral ring
- peripteral
- perlite aggregate
- perlite concrete
- permafrost
- permafrost soil
- permanent card
- permanent combination
- permanent contraction
- permanent current
- permanent deflection
- permanent displacement
- permanent elongation
- permanent form
- permanent formwork
- Permanent income
- permanent load
- permanent lubrication
- permanent personnel
- permanent securing
- permanent sound
- permanent structure
- permanent support
- permeability apparatus
- permeability coefficient
- permeability measurement
- permeability test
- permian
- permissible displacement
- permit building
- permit occupancy
- perpend stone
- perpendicular style
- perron
- Persian style
- personal distribution
- perspective plane
- perspective portal
- perspective representation
- perspective view
- pertinent
- pervasive
- pervious blanket
- pervious foundation
- pervious stratum
- petition
- petrol resistance