- (countable) A habit is something that you do regularly.
- John, don't bite your fingernails. It's a bad habit.
- Marjorie has a habit of buying Christmas presents early, hiding them away like a squirrel, and then forgetting all about them.
- (countable) A habit is what people in certain jobs wear, generally religious jobs. These people can be recognized by their habits.
- The monk's habit was black.
- A habit is the form of growth of a plant or, sometimes, an animal.
- Some corals grow with a branching habit.