По

по уши — over head and ears
по двое — by twos
по акту — with a certificate issued
по носу — broad off the bow
по моде — according to the fashion
по сути — per se
по иску — at the suit
по теме — on topic
по пояс — up to the waist
судя по — judging by
опыт по — experiments on
по суше — by land

Нам по пути?
Are you going my way?

Ему не по себе.
He feels rum.

Идёт! / По рукам!
It is a match!

Не ходи по траве.
Don't tread on the grass.

Я здесь по делам.
I'm here on business.

Я пошёл по траве.
I walked across the grass.

Я по уши в долгах.
I am deep in debt.

Мы ехали по шоссе.
We tooled along the highway.

Мы ехали по шоссе.
We were cruising along the highway.

Воды было по пояс.
The water was waist-deep.

Мы плыли по ветру.
We sailed with the wind.

Еду по магистрали.
Driving down the main road.