| 単複 | [たんぷく, tanpuku] (n) simplicity and complexity; singular and plural; single and double; singles and doubles (in tennis) [Add to Longdo] |
| 単複同形 | [たんぷくどうけい, tanpukudoukei] (n) nouns whose plural has the same form as their singular (e.g. sheep) [Add to Longdo] |