from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Law Taking effect at a specified date unless cause is shown for modification or nullification: a decree nisi.

from the GNU version of the Collaborative International Dictionary of English

  • conj. Unless; if not; -- used mostly in law.

from The Century Dictionary and Cyclopedia

  • Unless.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. not final or absolute


Latin, unless; see ne in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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