The sharp s is a character used in German language.

She is in her 20's.

She is in her 30's and enjoying life to the fullest.

The music from the 00's is still popular today.

I love listening to music from the 60's.

She loves the fashion of the 50's.

I miss the fashion trends of the 90's.

I love listening to music from the 70's.

She was born in the 40's.

The city streets were filled with s-holes.