from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The intervening time.
- adv. During or in the intervening time: Meanwhile, life goes on.
- adv. At the same time: The court is deliberating; meanwhile, we must be patient.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The time between two events
- adv. During the time (that something is happening).
- adv. At the same time, but elsewhere.
from The Century Dictionary and Cyclopedia
- Same as meantime.
- n. Same as meantime: only in the phrase in the meanwhile: two words, written as one.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adv. at the same time but in another place
- adv. during the intervening time
- n. the time between one event, process, or period and another
From Middle English. Adverb is by ellipsis from in the mean while, noun being conventionally written as one word after the adverb. (Wiktionary)