一いっ線せん級きゅうMeaningsNo-adjective1. top notch; first rate; top-of-the-line; leadingKanji used一one線line級classComposed of一いっ線せんone line; (a) single line; boundary; line (between things); distinction; forefront; front lineNoun級きゅう(school) grade; year; class; grade; rank; level; kyu (junior rank in martial arts, go, shogi, etc.)Noun