真っ先 (まっさき)the head; the foremost; beginning

真っ先, its kanji, and other words that share them.Open this graph

Kanji in 真っ先

写真しゃしんphotograph; photo
真相しんそうtruth; real situation
真のしんのtrue; real
真実しんじつtruth; reality
真ん中まんなかmiddle; centre
写真集しゃしんしゅうphoto book (esp. one featuring photos of female celebrities, models); photobook
真意しんいreal intention; true motive
真理しんりtruth
先月せんげつlast month
先生せんせいteacher; instructor
先進国せんしんこくadvanced (developed) country; advanced nations
優先ゆうせんpreference; priority
先発せんぱつstarting in advance; starting first
先にさきにpreviously; before
先進せんしんadvanced; developed
先頭せんとうhead; lead

See how 真っ先 connects to the rest of Japanese.