jpdb beta

for emergency use

jōyō kanji; kanji for common use; list of 2,136 kanji designated for common use (introduced in 1981, revised in 2010)

constant user; addict

(kanji) not in the jōyō list

narcotic addiction

common logarithm; base-10 logarithm

addiction

one's usual practice; one's old trick; one's usual modus operandi; the same old tactic

civil twilight