or
Definitions
Used to link alternatives, indicating that one or the other is true, possible, or chosen.
Used to introduce a synonym or explanation for a preceding word or phrase.
Used to indicate a consequence or result if the preceding statement is not true.
Examples
Would you like tea or coffee with your breakfast?
You can take the bus or walk to the park.
We need to decide whether to stay home or go out tonight.
Synonyms
alternatively otherwise as an alternative in other words or else