Firm is a word with multiple meanings in English:
1. As an adjective: solid, hard, or not yielding to pressure
2. As a noun: a business or company, especially a partnership of professionals
3. As a verb: to make something more secure or stable
Common expressions:
- Firm handshake: a confident handshake
- Law firm: a business formed by lawyers
- Stand firm: to refuse to change one's position