Как на британский слово-снизу;понизу

Снизу - from below, underarm. 

Понизу - below, down below, beneath.

Образцы потребления этих слов в предложениях:

I saw this wonderful animal, which is called a dog Sharik from below. I see everyone below because I am very tall. I like to look at the distant stars in the sky underarm. I always watch down below how they extinguish a fire on the upper floors. I always love to have a cat underarm me.
I sometimes go to the basement beneath. I always help from below, the one who climbs the stairs. I am always on the ground floor from below near the stewart in a hotel.