English adjective: 18 | |||
| 1. | 18 being one more than seventeen | ||
| Synonyms | eighteen, xviii | ||
| Similar | cardinal | ||
| Antonyms | ordinal | ||
English noun: 18 | |||
| 1. | 18 (quantity) the cardinal number that is the sum of seventeen and one | ||
| Synonyms | eighteen, XVIII | ||
| Broader (hypernym) | large integer | ||