楽天 らくてん Meanings Noun optimism Kanji 楽 ease. Read as ラク. 天 heaven. Read as テン. Words containing 楽天 楽天証券 (らくてんしょうけん) Rakuten Securities 楽天家 (らくてんか) optimist 楽天地 (らくてんち) paradise And 9 more. Word lists Written Jinuma: Japanese Dictionary · Word lists