The eighteenth uni-literal hieroglyph is called shin.
It depicts a pool of water.
It is pronounced like sh in the word, "shot."
It is transliterated as S.
In Manuel de Codage, type a large S to represent this sign.
Refer to Study Tips, if necessary.
When you feel confident that you have memorized this sign, go on to the next hieroglyph: Lesson 5c - goph