Riddle

I make things short, but I am pretty long myself. What am I?

Choose an answer

A.Summary
B.Acronym
C.Nickname
D.Abbreviation
Hint: It's a word with 12 letters, starting with "A".

Answer

Abbreviation

Why this is the answer

The word 'abbreviation' is itself a long word, even though its whole purpose is to shorten other words or phrases.

This riddle is filed under "What Am I?" Riddles and rated Medium.