¹ circle noun

• a perfectly round shape : a line that is curved so that its ends meet and every point on the line is the same distance from the center
• a path that goes around a central point —often used figuratively
• an arrangement of people or things that forms a circle

² circle verb

• to form a circle around (something)
• to draw a circle around (something)
• to move or go around (someone or something) in a circle