ERT

=**Aperture** (n.)- An opening or a hole   =


 * Cameras have a type of adjustable aperture which allows only a certain amount of light in to the image. These are called "F-stops." You might be familiar with Jack Johnson's song "F-stop Blues." [|Listen to it here.]



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=**Overt** (adj.)- Public, unhidden; open =
 * This man is demonstrating an //overt// protest by standing on the street and holding his sign for every passerby to see. You could also say these girls are being a bit //overt// with their choice of clothing.**

=**Covert** (adj.)- Done in a hidden or secret manner=
 * Spies are often very covert so no one will uncover them. James Bond is a good example.**

Chelsey Porth