This first edition of this supplemented 1911 thesaurus (June 1991) is
very much less complete than the latest editions of commercial thesauri, and is probably not suitable for use as an adjunct to word-processing programs, but it has no proprietary claims attached to it by micra, Inc., and does not contain any material published commercially after 1911. 
     Future (copyrighted) versions of this thesaurus are planned, which
will be reorganized in a hierarchical fashion to maximize the ability to take advantage of inheritance of semantic characteristics from higher categories.  The objective is to create a database of words organized by semantic categories, suitable for use in natural-language understanding programs.  This is a very small-scale project, which will not be competitive with large academic or commercial efforts such as the CYC project, but is intended to provide a convenient resource for experimentation in natural-language processing for individuals or small groups.  Anyone who is currently engaged in or contemplating a similar thesaurus or dictionary project, who would be willing to collaborate on this project, is encouraged to contact us, so that unnecessary duplication of effort can be avoided.  We would also appreciate being notified of typos, errors, or omissions in any version.  Send inquiries or comments to: 

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               Thesaurus of English words and phrases

                              ClassI
               words expressing abstract relations

Section I. Existence

1.  Being, in the abstract %

     #1.  Existence.—­ N. existence, being, entity, ens[Lat], esse[Lat],
subsistence.
     reality, actuality; positiveness &c. adj.; fact, matter of fact, sober
reality; truth &c. 494; actual existence.
     presence &c. (existence in space) 186; coexistence &c. 120.
     stubborn fact, hard fact; not a dream &c. 515; no joke.
     center of life, essence, inmost nature, inner reality, vital
principle.
     [Science of existence], ontology. 
     V. exist, be; have being &c. n.; subsist, live, breathe, stand,
obtain, be the case; occur &c. (event) 151; have place, prevail; find oneself, pass the time, vegetate.
     consist in, lie in; be comprised in, be contained in, be constituted
by.
     come into existence &c. n.; arise &c. (begin) 66; come forth &c.
(appear) 446.
     become &c. (be converted) 144; bring into existence &c. 161.