fast-flying

from WordNet (r) 3.0 (2006)

fast-flying
    adj 1: moving swiftly; "fast-flying planes"; "played the
           difficult passage with flying fingers" [syn: {fast-
           flying}, {flying}]

from The Collaborative International Dictionary of English v.0.48

fast-flying \fast-flying\ adj.
   moving or functioning quickly and energetically; as, a
   fast-flying messenger.

   Syn: fast flying, hurrying, speedy.
        [WordNet 1.5]

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