光結合
Hikari ketsugō
hikarihikari
Kigarui, or ukiuki.
Hikari-shin
Tsuki no Hikari (Literally: light of the moon)
no
You may say 'karui' (light) or simply 'omokunai' (not heavy).
You may say 'denki.'
光狼 Hikari ōkami
Direct translation would be "Kurai Hikari"(Dark = Kurai, and Light = Hikari)
You may say 'gekkou,' written: 月光
結合死
Jinsei means life and Hikari means light. Put together it would be Hikari wa Jinsei.