not necessary to; don't have to

Expresses gratitude or relief for something that happened in the past, a choice made, etc.

If only ~

It's good / okay to... / is fine

Alternative form of クレイオー (Kureiō, “Clio”) (the Muse of history and heroic poetry)

becquerel

Clipping of クレジットカード (kurejitto kādo, “credit card”).

Chinese red; deep crimson

Chinese red; deep crimson / a Kara-kurenai-colored thread or cloth / Synonym of 寒紅梅 (kankōbai): an ume cultivar, Prunus mume var. mume f. alphandii / a 伽羅 (kyara)-class of incense

(music) crescendo