Tidy step, spelled /ˈtaɪdi/ /stɛp/, refers to a clean and organized staircase. The first syllable is pronounced with the diphthong /aɪ/, and the second syllable has a short /ɛ/ sound. The word "tidy" is spelled with a single "d" instead of two because it has only one syllable and the final "y" serves as a vowel. Meanwhile, "step" is spelled with the letter "e" rather than "i" to represent the short /ɛ/ sound, as in "pet" or "get."