なん
nande

Adverb

1. why?; what for?

Usually Written in Kana
テニスウェアってなんでミニスカートなのかしら?
tenisuweatte nande minisukātona nokashira
I wonder why tennis is played in mini-skirts.
Adverb

2. how?; by what means?

ここになんで たの?
kokoni nande kitano
How did you come here?