from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To fail to correspond: our figures disagree. See Synonyms at differ.
- intransitive v. To have a differing opinion: She disagrees with him on everything. They say it will rain, but I disagree.
- intransitive v. To dispute or quarrel.
- intransitive v. To cause adverse effects: Caffeine disagrees with me.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To not agree (harmonize).
- v. To not agree (conform, correspond).
- v. To not agree (suit).
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To fail to accord; not to agree; to lack harmony; to differ; to be unlike; to be at variance.
- intransitive v. To differ in opinion; to hold discordant views; to be at controversy; to quarrel.
- intransitive v. To be unsuited; to have unfitness
from The Century Dictionary and Cyclopedia
- To differ; be not the same or alike; be variant; not to accord or harmonize: as, two ideas or two statements disagree when they are not substantially identical, or when they are not exactly alike; the witnesses disagree.
- To differ in opinion; be at variance; express contrary views: as, the best judges sometimes disagree.
- To be in a state of discord or altercation; wrangle; quarrel.
- To conflict in action or effect; be incompatible or unsuitable: as, food that disagrees with the stomach.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. be different from one another
- v. be of different opinions
Middle English disagreen, from Old French desagreer : des-, dis- + agreer, to agree; see agree.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English, from Anglo-Norman desagreer, as if dis- + agree. (Wiktionary)