octahedron

"Professor Davies is a learned scholar, renowned for her deep knowledge of ancient history. "

"Her mother's illness changed the shape of their family life. "

"Do you want to come with?"

"Often used to imply membership of a large class."

"The answer to the math problem was eight. "

"The professor's lecture focused on platonic ideas about the ideal society. "

"The farmer's math of the hay field was impressive—he collected a large amount. "

"The teacher showed us a colorful polyhedron with triangles and squares for faces. "

"The desk and chair in the classroom are made of solids. "

"The sergeant major is a regular in the British Army. "

"That girl has a pretty face."

"The art teacher asked the students to draw different shapes, including triangles. "