なんて

な

ん

て

Meanings

1

noun-modifying (irregular), adverb

how ...!; what ...!

usually written using kana alone

Expresses strong emotion or surprise about a quality or degree. Used prenominally or adverbially.

What a beautiful view!

なんて速はやく走はしるんだ。

How fast he runs!

2

Interjection expressing surprise or asking for clarification, often in casual speech.

〈事こと〉なんてused to dismiss or downplay something as trivial or unwanted
勉べん強きょうなんて大だい嫌きらいだ。
I really hate things like studying.
なんて言いったの？asking someone to repeat what they just said
え、なんて言いったの？
Huh, what did you say?
なんて〈形けい容よう詞し〉んだろうexpresses strong admiration or surprise about a quality
なんて美うつくしい景色けしきなんだろう。
What a beautiful view!

なんという sense 1
なんという is the fuller, slightly more formal phrase meaning 'what kind of ...!', while なんて is its contracted, more colloquial equivalent.
なんとN2
何て is a casual, spoken-style variant of 何と used for exclamations like 'what a...!', while 何と can sound more formal, written, or dramatic.

なんとpolite 丁寧語N2sense 1
なんと is the more formal or written counterpart of なんて, both used to express surprise or admiration about a degree.

何なんでN3
なんで sounds similar to なんて but means 'why' or 'how', not an exclamation of degree.

Contraction of なんという (what kind of). The interjection use derives from the exclamatory sense.