from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. To a very high level: The garbage was piled sky-high.
- adv. In a lavish or enthusiastic manner: The critics praised the play sky-high.
- adv. In pieces or to pieces; apart: Sappers blew the bridge sky-high.
- adj. High up in the air: sky-high trees.
- adj. Exorbitantly high in cost or value: sky-high prices; sky-high stocks.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Extremely tall
- adj. excessive, exorbitant
- adv. To a very high level
from the GNU version of the Collaborative International Dictionary of English
- adv. Very high.
from The Century Dictionary and Cyclopedia
- As high as the sky; very high.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adv. to a very high level
- adv. (with verb `to blow') destroyed completely; blown apart or to pieces
- adv. in a lavish or enthusiastic manner
From sky + high. (Wiktionary)