The Collaborative International Dictionary of English v.0.48:

Zoo- \Zo"o-\
   A combining form from Gr. zwo^,n an animal, as in zoogenic,
   zoology, etc.
   [1913 Webster]

WordNet (r) 3.0 (2006):

zoo
    n 1: the facility where wild animals are housed for exhibition
         [syn: menagerie, zoo, zoological garden]

Moby Thesaurus II by Grady Ward, 1.0:

20 Moby Thesaurus words for "zoo":
   Festschrift, ana, anthology, aquarium, body, chrestomathy,
   collectanea, collection, compilation, corpus, data, florilegium,
   fund, holdings, library, menagerie, museum, raw data, treasure,
   zoological garden



The Free On-line Dictionary of Computing (30 December 2018):

Berkeley Yacc
byacc
Zeus
Zoo

    (byacc, previously Zeus, then Zoo) Probably the best
   variant of the Yacc parser generator.  Written by Robert
   Corbett .

   (ftp://ftp.cs.berkeley.edu/pub/4bsd/byacc.1.9.tar.Z).

   (2000-07-16)


The Free On-line Dictionary of Computing (30 December 2018):

zoo

    A data compression program and format by
   Rahul Dhesi.  Zoo is reported to use the same Lempel Ziv
   algorithm as LHA.  It is available for many platforms and
   source is available.  .zoo archives are handled by many
   other PC archiving programs.

   Version 2.10 was released in 1989.  Search the web for zoo210
   to obtain an executable.

   Description (http://sources.isc.org/archiver/zoo2.txt).

   (2000-07-05)