noun
Definition: A place where drinks, especially alcoholic beverages, are served, often with seating for customers.
Example: We went to the bar after work to relax and have a drink.
preposition
Definition: Used to indicate that something is excluded or not included in a statement.
Example: Everyone was invited to the party, bar John who was out of town.
transitive verb
Definition: To prevent someone from doing something or to keep something out.
Example: The security guard will bar anyone without a ticket from entering the concert.