| English adjective: sonic | |||
| 1. | sonic (of speed) having or caused by speed approximately equal to that of sound in air at sea level | ||
| Samples | A sonic boom. | ||
| Synonyms | transonic | ||
| Antonyms | subsonic, supersonic | ||
| 2. | sonic relating to audible sound | ||
| Samples | A sonic wave. | ||
| Similar | audible, hearable | ||
| Antonyms | inaudible, unhearable | ||