adjective
Definition: Not easily moved or changed; strong and steady in position or belief.
Example: She gave a firm handshake to show her confidence.
adverb
Definition: In a way that shows strength or determination; not easily moved or changed.
Example: She held her position firm during the debate.
noun
Definition: A business organization or partnership where two or more people work together, especially one that is not legally separate from its owners.
Example: She works at a law firm that specializes in family law.
transitive verb
Definition: To make something solid or strong, often used with the word 'up'.
Example: She decided to firm up her plans for the weekend.