Definition of "or"
- preposition
- Before; ere. 
- adverb
- Earlier, previously. 
- Early (on). 
- adjective
- Of gold or yellow tincture on a coat of arms. 
- noun
- The gold or yellow tincture on a coat of arms. 
- conjunction
- Connects two equivalent names. 
- Otherwise; a consequence of the condition that the previous is false. 
- Counts the elements before and after as two possibilities. 
- Logical union of two sets of values. There are two forms, an exclusive or and an inclusive or. 
- Sources