[1] : The Collaborative International Dictionary of English v.0.48

or \or\ ^or, conj. oe. or, outher, other, auther, either,
   or, as. =awether, contr. from =ahwaeether; =a aye +
   hwaeether whether. see aye, and whether, and cf.
   either.
   a particle that marks an alternative; as, you may read or may
   write, -- that is, you may do one of the things at your
   pleasure, but not both. it corresponds to either. you may
   ride either to london or to windsor. it often connects a
   series of words or propositions, presenting a choice of
   either; as, he may study law, or medicine, or divinity, or he
   may enter into trade.
   1913 webster

         if man's convenience, health,
         or safety interfere, his rights and claims
         are paramount.                           --cowper.
   1913 webster

   note: or may be used to join as alternatives terms expressing
         unlike things or ideas as, is the orange sour or
         sweet?, or different terms expressing the same thing
         or idea; as, this is a sphere, or globe.
         1913 webster

   note: or sometimes begins a sentence. in this case it
         expresses an alternative or subjoins a clause differing
         from the foregoing. "or what man is there of you, who,
         if his son shall ask him for a loaf, will give him a
         stone?" --matt. vii. 9 rev. ver..
         1913 webster or for either is archaic or poetic.
         1913 webster

               maugre thine heed, thou must for indigence
               or steal, or beg, or borrow thy dispence.
                                                  --chaucer.
         1913 webster
see also:
aye whether either either 

[2] : The Collaborative International Dictionary of English v.0.48

-or \-or\ suff. l. -or: cf. of. -or, -ur, -our, f. -eur.
   1. a noun suffix denoting an act; a state or quality; as in
      error, fervor, pallor, candor, etc.
      1913 webster

   2. a noun suffix denoting an agent or doer; as in auditor,
      one who hears; donor, one who gives; obligor, elevator. it
      is correlative to -ee. in general -or is appended to words
      of latin, and -er to those of english, origin. see -er.
      1913 webster
see also:
-er 

[3] : The Collaborative International Dictionary of English v.0.48

or \or\, prep.  adv. as. ?r ere, before. root204. see ere,
   prep.  adv.
   ere; before; sooner than. obs.
   1913 webster

         but natheless, while i have time and space,
         or that i forther in this tale pace.     --chaucer.
   1913 webster

   or ever, or ere. see under ever, and ere.
      1913 webster
see also:
ere or ever or ere ever 

[4] : The Collaborative International Dictionary of English v.0.48

or \or\, n. f., fr. l. aurum gold. cf. aureate. her.
   yellow or gold color, -- represented in drawing or engraving
   by small dots.
   1913 webster
see also:
aureate 

[5] : WordNet (r) 2.0

or
     n 1: a state in northwestern united states on the pacific syn: oregon,
           beaver state
     2: a room in a hospital equipped for the performance of
        surgical operations; "great care is taken to keep the
        operating rooms aseptic" syn: operating room, operating
        theater, operating theatre, surgery
see also:
oregon beaver state operating room operating theater operating theatre surgery 

[6] : Moby Thesaurus II by Grady Ward, 1.0

152 moby thesaurus words for "or":
   achievement, alerion, and/or, animal charge, annulet, argent,
   armorial bearings, armory, arms, aureate, aureateness, auric,
   azure, bandeau, bar, bar sinister, baton, bearings, beige, bend,
   bend sinister, billet, blazon, blazonry, bordure, broad arrow,
   buff, buff-yellow, cadency mark, canary, canary-yellow, canton,
   chaplet, charge, chevron, chief, citron, citron-yellow,
   coat of arms, cockatrice, coronet, cream, creamy, crescent, crest,
   cross, cross moline, crown, device, difference, differencing,
   eagle, ecru, ermine, ermines, erminites, erminois, escutcheon,
   falcon, fallow, fallowness, fess, fess point, field, file, flanch,
   flaxen, fleur-de-lis, fret, fur, fusil, garland, gilded, gilt,
   gold, gold-colored, golden, griffin, gules, gyron, hatchment,
   helmet, heraldic device, honor point, impalement, impaling,
   inescutcheon, label, lemon, lemon-yellow, lion, lozenge, luteolous,
   lutescent, mantling, marshaling, martlet, mascle, metal, motto,
   mullet, nombril point, ocherish, ocherous, ochery, ochreous,
   ochroid, ochrous, ochry, octofoil, ordinary, orle, pale, paly,
   pean, pheon, primrose, primrose-colored, primrose-yellow, purpure,
   quarter, quartering, rose, sable, saffron, saffron-colored,
   saffron-yellow, sallow, saltire, sand-colored, sandy, scutcheon,
   shield, spread eagle, straw, straw-colored, subordinary, tenne,
   tincture, torse, tressure, unicorn, vair, vert, wreath, xanthic,
   xanthous, yale, yellow, yellowish, yellowishness, yellowness

[7] : Virtual Entity of Relevant Acronyms (Version 1.9, June 2002)

or
     originator / recipient x.400, motis, "o/r"
     
     

[8] : The Free On-line Dictionary of Computing (27 SEP 03)

or
     
         the boolean function which is true if any of its
        arguments are true.  its truth table is:
     
         a | b | a or b
         --+---+---------
         f | f |    f
         f | t |    t
         t | f |    t
         t | t |    t
     
        1996-11-04
     
     
see also:
boolean truth table 

[9] : Bouvier's Law Dictionary, Revised 6th Ed (1856)

or. this syllable in the termination of words has an active signification, 
and usually denotes the doer of an act; as, the grantor, he who makes a 
grant; the vendor, he who makes a sale; the feoffor, he who makes a 
feoffment. litt. s. 57; 1 bl. com. 140, n. 

O-R- >> O Words
O-R-, definition of term: O-R-
o-r-_pag1.html