What does number 18 mean?

Answer 1

Hebrew has no numerals, like 1, 2 and 3. Instead, Hebrew uses letters which would mean numerals, based on the context. So there are many "words" that look just like certain numbers.

For example, the letters that spell the Hebrew word "chaim" also mean the number "18". The Hebrew word "chaim" means "life", so many people interpret the number "18" as meaning "life".