제일
jeil · TOPIK 1
first
🥇 제일 = 第一: 제 (ordinal No.) + 일 (one) = number one
From hanja 第一, the same word as Chinese dì-yī and Japanese daiichi. 제 marks ordinals and 일 is the Sino-Korean one, so it literally says No. 1. Number one stretches naturally to most or best: 제일 좋아요 = I like it most.