"star" as noun
1 - Any small luminous dot appearing in the cloudless portion of the night sky, especially with a fixed location relative to other such dots.
2 - A luminous celestial body, made up of plasma (particularly hydrogen and helium) and having a spherical shape. Depending on context the sun may or may not be included.
3 - A concave polygon with regular, pointy protrusions and indentations, generally with five or six points.
"star" as verb
1 - To appear as a featured performer or headliner, especially in an entertainment program.
2 - To feature (a performer or a headliner), especially in a movie or an entertainment program.
3 - To mark with a star or asterisk.
