Japanese edit

For pronunciation and definitions of めいあん – see the following entries.
名案
[noun] good idea
明暗
[noun] light and darkness
[noun] the difference between a positive or negative outcome (e.g. happiness vs. sadness or success vs. failure)
(This term, めいあん, is the hiragana spelling of the above terms.)

(The following entries are uncreated: 迷案, 迷暗, 迷闇, 冥暗, 冥闇.)