| perceptiveness | atención |
| Perceptron | Perceptrón |
| perch | percha |
| Percheron | Percherón |
| Percidae | Percoidei |
| Perciformes | Perciformes |
| percipient | perceptor |
| Percival | Perceval |
| Percival Lowell | Percival Lowell |
| percolate | colar |
| percolate through | infiltrarse |
| percolating water | agua de percolación |
| percolation | filtración |
| percolator | cafetera de filtro |
| Percujove | Châlons-en-Champagne |
| Percula clownfish | Amphiprioninae |
| percussion | percusión |
| percussion instrument | instrumento de percusión |
| percussion section | percusión |
| percussive | percutiente |
| Percy Bysshe Shelley | Percy Bysshe Shelley |
| Percy Weasley | Percy Weasley |
| Percy Williams Bridgman | Percy Williams Bridgman |
| Perdiccas | Pérdicas |
| Perdiccas I of Macedon | Pérdicas I |
| Perdiccas II of Macedon | Pérdicas II de Macedonia |
| Perdiccas III of Macedon | Pérdicas III de Macedonia |
| Perdicula | Perdicula |
| perdition | perdición |
| Perdurantism | Perdurantismo |
| Perea | Perea |
| Peregrin Took | Peregrin Tuk |
| peregrination | peregrinación |
| peregrine falcon | halcón peregrino |
| Pereira | Pereira |
| peremptory | perentorio |
| Peremptory norm | Ius cogens |
| Perennial plant | Planta perenne |
| Perentie | Varanus giganteus |
| Perené River | Río Perené |
| Pereskia | Pereskia |
| Perestroika | Perestroika |
| Peretola Airport | Aeropuerto de Florencia |
| Peretz | Piper |
| Perez Prado | Dámaso Pérez Prado |
| perfect | completo |
| Perfect aspect | Pretérito perfecto compuesto |
| perfect example | arquetipo |
| Perfect fifth | Quinta justa |
| Perfect fluid | Superfluido |
| Perfect magic cube | Cubo mágico perfecto |
| Perfect number | Número perfecto |
| perfect participle | participio pasado |
| Perfect square | Cuadrado perfecto |
| Perfect Strangers | Perfect Strangers |
| perfection | perfeccionamiento |
