intransitive verb
Definition: To move smoothly and quietly, often by losing grip or balance; to fall or escape from a position.
Example: She slipped on the ice and fell down.
noun
Definition: A small piece of paper or material that is often used for writing notes or messages, or a narrow strip of something.
Example: She wrote her phone number on a slip of paper and handed it to him.
transitive verb
Definition: To make something move smoothly or easily, often in a sliding manner.
Example: She slipped the letter into the envelope before sealing it.