Definition: The Hebrew word "raa" translates to "water." In its purest sense, "r" is a consonant sound found in the alphabet, while "a" is an affricate sound. So, when "raa15" sounds like a simple letter, it means "one fifth or one and five parts of the vowel, as 'r' (five vowels) and 'a' (three)" - which isn't particularly creative but fits with Hebrew language's consonant-vowel-diphthong structure.