There are many interp signs in the museum.

The soldiers communicated using their net call signs.

I saw several minus-plus signs on the whiteboard.

The plus-minus signs indicate the possible values of the variable.

The military unit used various tactical call signs during the operation.

The radiologist identified multiple fat pad signs on the X-ray.

The collective call signs of the military units were displayed on their vehicles.

The beach was filled with hang-loose signs.

The Harvey Smith signs are displayed all over the city.

The pilots were assigned new indefinite call signs.