First Thing
The First
noun
You've seen 一番 (number one), so what in the world is this eye on the end? This eye (目) signifies the order. So, add this to "number one" and you have the first thing / the first.
The reading for this word is just the vocab word 一番 plus the word 目. If you know both of those readings you'll be able to read this one as well.
一番目の店
first shop
一番目の子
the first child
一番目のブログ記事
first blog post
今回のテストで、私はクラスで一番目だった。
In this test, I was first in my class.
その朝、一番目に家を出たのは兄でした。
On that morning, my older brother was the first to leave the house.
東京大学に入学できる事を一番目に知らせたかった人は、受験中ずっと支えてくれた父でした。
The first person who I wanted to inform that I would be admitted to the University of Tokyo was my father, who supported me throughout my entrance exams.