from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To act together secretly to achieve a fraudulent, illegal, or deceitful purpose; conspire.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. to act in concert with; to conspire
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To have secretly a joint part or share in an action; to play into each other's hands; to conspire; to act in concert.
from The Century Dictionary and Cyclopedia
- To conspire in a fraud or deception; act in concert through a secret understanding; play into one another's hands. See collusion.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. act in unison or agreement and in secret towards a deceitful or illegal purpose
Latin collūdere : com-, com- + lūdere, to play; see leid- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)