Japanese edit

For pronunciation and definitions of くわいき – see the following entries.
回帰かいき
[noun] return (coming back)
[noun] recurrence
[noun] (statistics) regression
[verb] to return
[verb] to recur
(This term, くわいき, is a historical kana spelling of the above term.)

(The following entries are uncreated: 会記, 会規, 会期, 回忌, 快気, 怪気, 怪奇, 瑰奇.)