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Learn Greek Root 4:

Meaning: The meaning of "photo" is "light".

Pronunciation: Each "o" in "photo" is usually pronounced as the "o" in "no" or "slow".

Example 1: A "photograph" uses light to print a picture on paper.

Example 2: Cameras have a "telephoto" lens (also called a "zoom" function) so that you can take a photograph from a long distance away.

Example 3: Plants use a process called "photosynthesis" to make food. In this process, the plants use light from the sun.

Other words:
photographer - a person who takes many photographs
a photon - a small particle of light
a photocopier - a machine that makes copies using light
photogenic - describes someone who looks good in photographs
photometer - an instrument to measure the intensity of light

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