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measure
one who
100
thermometer
What is an instrument used to measure heat or temperature
100
optometrist
What is one who measures vision?
200
thermal
What is related to or caused by heat or temperature?
200
artist
What is one who creates art?
300
speedometer
What is an instrument used to measure speed?
300
cartoonist
What is one who creates cartoons?
400
meter
What is a measure of length
400
optician
What is a person who sells or makes eyeglases and contact lenses?
500
odometer
What is an instrument used to measure the distance traveled?
500
pedestrian
What is one who travels on foot?