1. Quad (four)

2. Quadrangle Quadrant Quadrennial Quadriceps Quadrilateral Quadrilingual Quadrisect Quadruped Quadruple Quadruplet

3. Quadrangle (N) An Enclosure – With 4 sides – Surrounded by buildings The 4 th and 5 th grade students ate their feast in the quadrangle.

4. Quadrant (N) A part – Of 4 sections A circle A grid Please pick the quadrant with the correct answer.

5. Quadrennial (Adj) Happening – Every 4 years The Summer Olympics are quadrennial.

6. Quadriceps (N) A muscle group – With four muscles – Along the front of the thigh After the walk-a-thon, my quadriceps were killing me.

7. Quadrilateral (N) A plane figure – With 4 sides Square Rectangle Rhombus Parallelogram Trapezoid We will discuss the different quadrilaterals in math class.

8. Quadrilingual (Adj) Ability – To speak 4 languages My friend, Alicia, is quadrilingual; she speaks Spanish, French, Chinese and English.

9. Quadrisect (V.) To cut – Into 4 pieces The doctor was able to quadrisect the pill.

10. Quadruped (N) A thing – With four legs I must take my quadruped for a walk around the block each day.

11. Quadruple (v) 4 times – As much of something The quadruple scoop cone was hard to eat.

12. Quadruplet (V.) A group – Of 4 – One of 4 babies The beautiful quadruplet was very small at birth.