The word "gleb" is an uncommon term that refers to a type of soil commonly found in Russia. Its spelling is not intuitive, but can be explained through the use of the International Phonetic Alphabet (IPA). The first two letters, "gl," represent a voiced velar stop consonant, while the "e" is pronounced as a short "e" sound. The final letter, "b," represents a voiced bilabial stop consonant. Taken together, these sounds create the unique spelling and pronunciation of the word "gleb."