| いくない | [, ikunai] (exp,adj-i) (incorrect conjugation of 良い) (See 良い・1) not good |
| カ変 | [カへん, ka hen] (n) (abbr) (See カ行変格活用) irregular conjugation (inflection, declension) of the verb "kuru" |
| カ行変格活用 | [カぎょうへんかくかつよう, ka gyouhenkakukatsuyou] (n) irregular conjugation (inflection, declension) of the verb "kuru" |
| サ変 | [サへん, sa hen] (n) (abbr) (See サ行変格活用) irregular conjugation (inflection, declension) of "suru" verbs |
| サ行変格活用 | [サぎょうへんかくかつよう, sa gyouhenkakukatsuyou] (n) irregular conjugation (inflection, declension) of "suru" verbs |
| ナ変 | [ナへん, na hen] (n) (abbr) (See ナ行変格活用) irregular conjugation (inflection, declension) of verbs ending in "nu" (in written Japanese) |
| ナ行変格活用 | [ナぎょうへんかくかつよう, na gyouhenkakukatsuyou] (n) {ling} irregular conjugation (inflection, declension) of verbs ending in "nu" (in written Japanese) |
| パイ共役 | [パイきょうやく, pai kyouyaku] (n) pi conjugation |
| ラ変 | [ラへん, ra hen] (n) (abbr) (See ラ行変格活用) irregular conjugation (inflection, declension) of a limited number of verbs ending in "ru" (in written Japanese) |
| ら抜き | [らぬき, ranuki] (n) (abbr) (See ら抜き言葉) 'ra'-removed; the practice of skipping the 'ra' from the 'rareru' verb conjugation |
| ラ行変格活用 | [ラぎょうへんかくかつよう, ra gyouhenkakukatsuyou] (n) irregular conjugation (inflection, declension) of a limited number of verbs ending in "ru" (in written Japanese) |
| 一段活用 | [いちだんかつよう, ichidankatsuyou] (n) conjugation (inflection, declension) of ichidan verbs |