from the ground up

Adverb

idiomatic not-comparable

(idiomatic) From the beginning; starting with the basics, foundation, or fundamentals.

Japanese Meaning

基礎から始める、一から構築する / 初めから、基本から取り組む

We rebuilt the building from the ground up after the fire.

火事の後、私たちはその建物を最初から再建しました。

Sense（1）

(idiomatic) From the beginning; starting with the basics, foundation, or fundamentals.

A bright, ambitious kid just out of technical school, learning railroading from the ground up.