from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. At an indefinite time in the future.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adv. Sometime; at some time in the future.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adv. some unspecified time in the future
some + day (Wiktionary)