Japanese edit

For pronunciation and definitions of たいへん – see the following entries.
大変
[adjective] difficult, hard
[adjective] terrible
[adjective] serious, grave
[adverb] very, greatly
[noun] disaster
[noun] difficulty
[noun] dreadfulness
対辺
[noun] (geometry) opposite side
(This term, たいへん, is the hiragana spelling of the above terms.)

(The following entry is uncreated: 大編.)