- primary task
- primary test
- primary thrombus
- primary time
- primary torque
- primary track
- primary treatment
- primary triangulation
- primary trisomy
- primary truss
- primary tuberculosis
- primary unit
- primary vitamin
- primary voltage
- primary volume
- primary washer
- primary water
- primary wave
- primary waves
- primary widow
- primary winding
- primary-secondary
- primate
- primates
- primateship
- primatial
- primatical
- primatological
- primatologist
- primatology
- primavera
- prime
- prime article
- prime attribute
- prime bank
- prime bill
- prime bond
- prime coat
- prime colors
- prime colours
- prime contract
- prime contractor
- prime cost
- prime credit
- prime customers
- prime debtor
- prime element
- prime end
- prime entry
- prime factor
- prime field
- prime file
- prime filter
- prime formula
- prime ideal
- prime index
- prime key
- prime meridian
- prime minister
- prime move
- prime mover
- prime number
- prime paper
- prime pipe
- prime polynomial
- prime power
- prime prospect
- prime rate
- prime rib
- prime system
- prime time
- prime tube
- prime twins
- primely
- primeness
- primer
- primer bath
- primer detonator
- primer oven
- primer pump
- primer surface
- primero
- primerval
- primetide
- primeur
- primeurs
- primeval
- primevally
- primigenial
- primigenious
- primigenous
- primigravida
- primine
- priming
- priming cartridge
- priming chamber
- priming charge
- priming coat
- priming cock
- priming funnel