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peri-
(PER-ee)around
Greek for around. A perimeter is the distance around a shape; a periscope sees around an obstacle.
prefixGreek
Place & directionExample words
perimeter
the distance around a shape
periscope
a tool for seeing around or over an obstacle
period
a stretch of time that goes around and comes back (a recurring span)
Who it is for
Grades served: 6, 7
Level 2Level 1 holds the word parts students meet first. Level 3 holds the ones that turn up in harder reading.
Related roots
Place & direction. Roots that locate things: under, over, between, before, after.
Browse all place & direction roots →