出典:Wiktionary
出典:『Wiktionary』 (2025/08/04 16:08 UTC 版)
| ← 80 | 81 | 82 → |
|---|---|---|
| Cardinal: eighty-one Ordinal: eighty-first Abbreviated ordinal: 81st Adverbial: eighty-one times |
||
eighty-first
English ordinal numbers may function as either an adjective or as a noun, and almost never appear in the plural.