| Word | Definitions | Synonyms |
|---|---|---|
| sixteen | (adjective) being one more than fifteen | Synonyms: 16, xvi |
| sixteenth | (adjective) coming next after the fifteenth in position | Synonyms: 16th |
| sixth | (adjective) coming next after the fifth and just before the seventh in position | Synonyms: 6th |
| sixtieth | (adjective) the ordinal number of sixty in counting order | Synonyms: 60th |
| sixty | (adjective) being ten more than fifty | Synonyms: 60, lx, threescore |