but vs or

but

conj
  • However, although, nevertheless, on the other hand (introducing a clause contrary to prior belief or in contrast with the preceding clause or sentence). 

  • Except that (introducing a subordinate clause which qualifies a negative statement); also, with omission of the subject of the subordinate clause, acting as a negative relative, "except one that", "except such that". 

  • Used to link an interjection to the following remark as an intensifier. 

  • On the contrary, rather (as a regular adversative conjunction, introducing a word or clause in contrast or contradiction with the preceding negative clause or sentence). 

  • Used at the beginning of a sentence to express opposition to a remark. 

prep
  • Outside of. 

  • Apart from, except (for), excluding. 

noun
  • An instance or example of using the word "but". 

  • A limit; a boundary. 

  • The outer room of a small two-room cottage. 

  • The end; especially the larger or thicker end, or the blunt, in distinction from the sharp, end; the butt. 

adv
  • Though, however. 

  • Merely, only, just, no more than 

or

conj
  • Otherwise (a consequence of the condition that the previous is false). 

  • Connects at least two alternative words, phrases, clauses, sentences, etc., each of which could make a passage true. 

  • Connects two equivalent names. 

  • An operator denoting the disjunction of two propositions or truth values. There are two forms, the inclusive or and the exclusive or. 

  • Counts the elements before and after as two possibilities. 

prep
  • Before; ere. Followed by "ever" or "ere". 

adj
  • Of gold or yellow tincture on a coat of arms. 

noun
  • or 

  • The gold or yellow tincture on a coat of arms. 

How often have the words but and or occurred in a corpus of books? (source: Google Ngram Viewer )