Japanese edit

For pronunciation and definitions of せっかく – see the following entries.
折角
[adverb] at great pains, going to great trouble
刺客しかく
[noun] Synonym of 暗殺者 (ansatsusha, assassin)
[noun] Synonym of 殺し屋 (koroshiya, hitman)
Alternative spelling
しきゃく
(This term, せっかく, is the hiragana spelling of the above terms.)

(The following entry is uncreated: 石核.)