Unit 13 Root Words

One of five babies that are born at the same time to the same mother.

• quintuplet
• trident
• quartet
• trilogy

A shape the is like a star with five points formed by five straight lines

• pentagon
• quadrangle
• pentagram
• trident

A fishing spear that has three points and that looks like a large fork

• triathlon
• trimester
• trilogy
• trident

A US customary unit of measurement for liquids.

• quartet
• quart
• quadrangle
• pentagram

A period of three months; school years are sometimes divided

• trimester
• trilogy
• triathlon
• quarter

four

• penta
• quad
• quint
• tri

 A flat shape that has five sides and five corners.

• quartet
• pentaagram
• pentagon
• quintuplet

A serious of three novels, movies, etc.

• trilogy
• trident
• quartet
• trimester

five

• tri
• quar
• quad
• penta

A group of four singers or musicians who perform together.

• quintuplet
• quadrangle
• quartet
• trident