adjective
Definition: Flat or level without any bumps or curves.
Example: The table has a plane surface that is perfect for writing.
intransitive verb
Definition: To soar or glide through the air, often used in the context of flying or traveling by aircraft.
Example: The bird began to plane gracefully above the trees.
noun
Definition: A flat surface or a tool used to make surfaces smooth; it can also refer to an aircraft that flies in the sky.
Example: The plane flew high above the clouds.
transitive verb
Definition: To make a surface smooth or even by removing thin layers of material, often using a tool called a plane.
Example: He used a plane to smooth the wooden surface before painting it.