Lesson 7 Vocabulary & Prefixes
mid + night = midnight in the middle of the night  24:00 hours I go to sleep at midnight.  
mid + point = midpoint a place that is in the middle of  something The line is 10 inches long.  The midpoint must be 5.
mono + lingual = monolingual one language Most Americans are monolingual.  They can only speak English.  
mono + rail = monorail one rail Most trains use two rails, but a monorail just has one!
multi + ply = multiply to add a number many times The girl can multiply 5 and 10.  The answer is 50.  
multi + task = multitask to do many things at one time Many people multitask.  They do three jobs at one time!
poly + gon = polygon a shape with many sides This 4 sided polygon is a square.  
Poly + nesia = Polynesia a country with made up of many islands French Polynesia is beautiful.  The islands are tropical.
semi + circle = semicircle half of a circle A semicircle is just a circle cut in half!  
semi + sweet = semisweet half as sweet as usual This chocolate is semisweet.  It tastes good.