Picture a semicircle as a pizza slice; it helps visualize its shape. The road curved in a perfect semicircle like a slice of my favorite pizza.
Pro Tip 2/3
Descriptive Use
Use 'semicircle' to describe objects or formations that approximate a half-circle. The dancers stood in a loose semicircle to welcome the audience.
Pro Tip 3/3
Not Always Perfect
A semicircle may refer to something not exactly half a circle, but close in shape. The children arranged their seats in a rough semicircle around the campfire.