I saw several pound signs on the wall.

She co-signs the loan for her sister.

She is co-signing the loan for her sister.

The day signs are important in astrology.

There are twelve zodiac signs in astrology.

There are twelve astrological signs in the zodiac.

The equation is written with equal signs.

She flashed two V signs in the photo.

The equation contains several division signs.

I love walking down the street at night and seeing all the neon signs.