| Pla de Soulcem | Pla de Soulcem |
| placare | calm down |
| placarsi | cool down |
| placca | sheet |
| Placca africana | African Plate |
| Placca caraibica | Caribbean Plate |
| Placca nordamericana | North American Plate |
| Placca pacifica | Pacific Plate |
| placcare | plate |
| placcato | plate |
| placcato oro | gold-plated |
| placcatura | plating |
| Placchetta di metallo | Tap |
| Place de la Concorde | Place de la Concorde |
| Place des Victoires | Place des Victoires |
| Place des Vosges | Place des Vosges |
| Place Flagey | Flagey Square |
| Place Vendome | Place Vendôme |
| Place Vendôme | Place Vendôme |
| placebo | placebo |
| placenta | afterbirth |
| Placenta previa | Placenta praevia |
| Placerias | Placerias |
| placevole | nice |
| placidità | placidity |
| placido | soft |
| Placodermi | Placodermi |
| Placodontia | Placodont |
| Placozoa | Trichoplax |
| Plaffeien | Plaffeien |
| plafond | plateau |
| plagiare | plagiarize |
| plagiaria | plagiarist |
| plagiario | plagiarist |
| plagio | plagiarism |
| plaid | blanket |
| Plainfeld | Pleinfeld |
| Plainfield | Plainfield |
| Plaka | Plaka |
| Plan | Plane |
| Plan-du-Var | Plan-du-Var |
| Plan-les-Ouates | Plan-les-Ouates |
| Plana Baixa | Plana Baixa |
| planare | glide |
| Planarium | Planarium |
| plancia | gangplank |
| Planck Surveyor | Planck satellite |
| plancton | plankton |
| Plandište | Plandište |
| Planegg | Planegg |
| Planemo | Planemo |
| Planet opera | Planetary romance |
| PLANET-C | PLANET-C |
| Planetari meccanici | Orreries |
| planetario | planetarium |
| Planetary Society | Planetary Society |
| Planetesimi | Planetesimals |
| planetoide | asteroid |
| PlanetQuest | PlanetQuest |
| Planica | Planica |
| Plankalkül | Plankalkül |
| Planken | Planken |
| Plankenfels | Plankenfels |
| Plankstadt | Plankstadt |
| plankton | plankton |
| Plantae | Plant |
| Plantaginaceae | Plantaginaceae |
| Plantago lanceolata | Ribwort Plantain |
| plantano | plantain |
| Plantare | Leave high and dry |
| Plantin-Moretusmuseum | Plantin-Moretus Museum |
| Planá | Planá |
| Plaquette | Folder |
| Plasencia | Plasencia |
| plasma | plasma |
| Plasma di quark e gluoni | Quark-gluon plasma |
| plasma sanguigno | blood plasma |
| Plasmapausa | Plasmapause |
| plasmare | form |
| Plasmi a bassa temperatura | Low temperature plasmas |
| Plasmi collisionali | Collisional plasma |
| Plasmi cosmici | Cosmic plasma |
| Plasmi relativistici | Relativistic plasma |
| Plasmide | Plasmid |
| Plasmidi | Plasmid |
| Plasmodesma | Plasmodesmata |
| Plasmodium | Plasmodium |
| Plasmodium malariae | Plasmodium malariae |
| Plasmodium vivax | Plasmodium vivax |
| Plasmolisi | Plasmolysis |
| Plasmone | Plasmon |
| Plasmopara viticola | Plasmopara viticola |
| Plast | Plast |
| Plastic Man | Plastic Man |
| Plastic Ono Band | Plastic Ono Band |
| plastica | plastic |
| plastica riciclabile | recyclable plastic |
| plasticità | plasticity |
| Plasticitá sinaptica | Synaptic plasticity |
| plastico | plastic |
| Plastidio | Plastid |
| plastificare | plasticize |
| plastilina | Plasticine |
| Plastiscines | Plastiscines |
| Plata Quemada | Plata Quemada |
| Platalea minor | Black-faced Spoonbill |
| Platanias | Platanias |
| Platanista gangetica | Ganges and Indus River Dolphin |
| Platanthera bifolia | Platanthera bifolia |
| Platanus | Plane-tree |
| Platanus orientalis | Platanus orientalis |
| Platealità | General |
| plateau | plateau |
| Plateau antartico | Antarctic Plateau |
| Plateau centrale siberiano | Central Siberian Plateau |
| Plateau de Beille | Plateau de Beille |
| Plateaux | Plateaux Region |
| Plateosauridae | Plateosauridae |
| Plateosaurus | Plateosaurus |
| Plateresco | Plateresque |
| platino | platinum |
| Platisma | Platysma muscle |
| Plato Tiburtinus | Plato Tiburtinus |
| Platone | Greek |
| platonico | platonic |
| Platte | Platte River |
| Plattling | Plattling |
| Platyhelminthes | Flatworm |
| Platyrrhini | New World monkey |
| Plaue | Plaue |
| Plauen | Plauen |
| plausibile | evident |
| plausibilità | plausibility |
| Plausible | See en lo posible |
| Plauzia Urgulanilla | Plautia Urgulanilla |
| Plav | Plav |
| Playas de Castellón Fútbol Sala | Playas de Castellón FS |
| Playback | Playback singer |
| playboy | playboy |
| Playdia | Playdia |
| Player versus environment | Player versus player |
| Playhouse Disney | Playhouse Disney |
| Playing the Angel | Playing the Angel |
| Plays Metallica by four cellos | Plays Metallica by Four Cellos |
| PlayStation | PlayStation |
| PlayStation Magazine | PSM |
| PlayStation Network | PlayStation Network |
| PlayStation Portable | PlayStation Portable |
| Plaza de Mayo | Plaza de Mayo |
| Plaza México | Plaza México |
| Plazas de soberanía | Plazas de soberanía |
| Pleasanton | Pleasanton |
| Pleasantville | Pleasantville |
| plebaglia | riffraff |
| plebe | commonalty |
| Plebei | Plebs |
| Plebeismo | Popular form |
| plebeo | commoner |
| Plebisciti nello Schleswig | Schleswig Plebiscites |
| plebiscito | plebiscite |
| Plech | Plech |
| Plecoptera | Plecoptera |
| Plecostomus | Plecostomus |
| Plecotus auritus | Brown long-eared bat |
| Plectrude | Plectrude |
| Plegadis falcinellus | Glossy Ibis |
| Pleiadi | Pleiades |
| Pleidelsheim | Pleidelsheim |
| Pleinfeld | Pleinfeld |
| Pleione | Pleione |
| Pleiospilos | Pleiospilos |
