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ad lib

audio pronunciation
noun
  • something improvised in speech, music, etc. [Webster]
adverb
    1. at one's pleasure; without restriction
    2. freely, as needed
    [Webster]
  • without restraint or limit, to speak, sing, or act without a script, saying whatever words come into one's mind [Taisha]

More word meanings for ad lib
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Wiktionary:
ad lib @ wiktionary
WordNet:
ad lib @ wordnet.princeton.edu
Merriam-Webster Online:
ad lib @ M-W.com
MSN Encarta:
ad lib @ Encarta
American Heritage Dictionary of the English Language:
ad lib @ AHD provided by Yahoo! Education
Answers.com:
ad lib @ Answers.com
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