pleasance vs. pleasure
paederasty vs. pederasty
peek vs. peep
pedagogics vs. pedagogy
perception vs. sensing
percept vs. perception
pageant vs. pageantry
ploughing vs. plowing
prick vs. pricking
prick vs. tool
prick vs. shit
prick vs. whoreson
SOB vs. prick
prick vs. prickle
prick vs. up
prick vs. sting
planning vs. provision
programing vs. programming
programming vs. scheduling
personification vs. prosopopoeia
pacification vs. peace
pillage vs. pillaging
pillage vs. swag
pillage vs. plunder
pillage vs. strip
prolongation vs. protraction
perpetuation vs. prolongation
phrasing vs. wording
phraseology vs. phrasing
phrasing vs. verbiage
perseverance vs. persistence
perseverance vs. perseveration
perseverance vs. persistency
perseverance vs. tenacity
perseverance vs. tenaciousness
perseverance vs. pertinacity
prosecution vs. pursuance
pursuance vs. quest
penance vs. repentance
penance vs. penitence
papism vs. popery
prayer vs. supplication
petition vs. prayer
prayer vs. supplicant
provision vs. supply
provision vs. supplying
provision vs. proviso
provision vs. purvey
procrastination vs. shillyshally
peddling vs. vending
pawn vs. soak
publication vs. publishing
photogravure vs. rotogravure
patronage vs. trade
patronage vs. support
parcel vs. share
package vs. parcel
packet vs. parcel
parcel vs. tract
portion vs. share
portion vs. serving
preface vs. prolusion
permit vs. tolerate
payment vs. requital
privation vs. want
pauperisation vs. pauperization
primer vs. priming
priming vs. undercoat
pound vs. quid
pound vs. ram
pounding vs. throbbing
pounding vs. throb
proceeding vs. proceedings
proceedings vs. transactions
protest vs. protestation
protest vs. resist
plea vs. supplication
precondition vs. presumption
payback vs. retribution
precedence vs. precession
precedency vs. precession
precedence vs. precedency
precedence vs. priority
parole vs. word
parole vs. password
parole vs. watchword
population vs. universe
pounce vs. swoop
proclamation vs. promulgation
pest vs. pesterer
pest vs. pestilence
pest vs. plague
pest vs. pestis
pup vs. whelp
pup vs. puppy
parvo vs. parvovirus
parasite vs. sponger
parasite vs. sponge
paramecia vs. paramecium
protist vs. protistan
procaryote vs. prokaryote
pseudopod vs. pseudopodium
prickleback vs. stickleback
peewee vs. pewee
peewit vs. pewee
pewee vs. pewit
peewee vs. shrimp
peewee vs. runt
peewit vs. pewit
pisanosaur vs. pisanosaurus
pachycephalosaur vs. pachycephalosaurus
psittacosaur vs. psittacosaurus
plesiosaur vs. plesiosaurus
protomammal vs. therapsid
pecker vs. woodpecker
pecker vs. peckerwood
pecker vs. tool
partridge vs. tinamou
pouter vs. sourpuss
picklepuss vs. pouter
parakeet vs. parrakeet
parakeet vs. parroket
parakeet vs. paraquet
parakeet vs. paroquet
parakeet vs. parroquet
paddymelon vs. pademelon
phalanger vs. possum
pen vs. playpen
pen vs. write
pelt vs. pepper
pelt vs. stream
plume vs. preen
plume vs. primp
phragmacone vs. phragmocone
pinworm vs. threadworm
poriferan vs. sponge
parazoan vs. sponge
planaria vs. planarian
polyp vs. polypus
polychaete vs. polychete
periwinkle vs. winkle
prawn vs. shrimp
puss vs. snatch
pennon vs. pinion
pennon vs. streamer
pennant vs. pennon
pennon vs. waft
pinion vs. quill
pinion vs. shackle
predator vs. vulture
prey vs. quarry
prey vs. target
prey vs. raven
pipistrel vs. pipistrelle
proturan vs. telsontail
pincer vs. tweezer
punkie vs. punky
punkey vs. punkie
psylla vs. psyllid
plecopteran vs. stonefly
pony vs. trot
plug vs. stopper
plug vs. stopple
plug vs. secure
pacemaker vs. pacer
pacer vs. pacesetter
pacemaker vs. pacesetter
pig vs. slob
pig vs. sloven
pig vs. raven
prongbuck vs. pronghorn
proboscis vs. trunk
pad vs. tablet
peludo vs. poyou
polliwog vs. tadpole
pollywog vs. tadpole
prelate vs. primate
proboscidean vs. proboscidian
pollack vs. pollock
pout vs. sulk
pilchard vs. sardine
pike vs. superhighway
pike vs. throughway
pike vs. thruway
perch vs. rod
perch vs. rest
pinfish vs. squirrelfish
pleopod vs. swimmeret
porgy vs. scup
pirana vs. piranha
piranha vs. vulture
parrotfish vs. pollyfish
puffer vs. pufferfish
prop vs. property
prop vs. shore
pane vs. paneling
pane vs. panelling
pusher vs. zori