I am learning si.

Silicon is a chemical element with the symbol Si.

My sis is coming to visit me next week.

She looks sick and needs to see a doctor.

The side of the mountain was steep.

I saw a cat walking on the sidewalk.

Decompression sickness, also known as the bends, is a condition that occurs when a diver ascends too quickly from a deep dive.

Please write on the right side of the paper.

Siam is the former name of Thailand.

I have a Siamese cat named Luna.