English noun: psi | |||
| 1. | psi (quantity) a unit of pressure | ||
| Synonyms | pounds per square inch | ||
| Broader (hypernym) | pressure unit | ||
| 2. | psi (communication) the 23rd letter of the Greek alphabet | ||
| Broader (hypernym) | alphabetic character, letter, letter of the alphabet | ||
| Member meronym | Greek alphabet | ||