GRE

perennial - something long-lasting

perforate - pierce; put a hole through :: penetrate pierce bore drill punch puncture

perfunctory - superficial; not thorough; lacking interest, care, or enthusiasm

perifidious - treacherous; disloyal

perigee - point of moon's orbit when it is nearest the earth

perimeter - outer boundary

peripatetic - walking about; moving :: itinerant

peripheral - marginal; outer

periphery - edge, especially of a round surface

perjury - false testimony while under oath

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