The spelling of the word "rug apes" is quite interesting. The word is actually split into two separate words, "rug" and "apes", which are pronounced with different vowel sounds. "Rug" is pronounced with the vowel sound /ʌ/ (as in "cup"), while "apes" is pronounced with the vowel sound /eɪ/ (as in "day"). Therefore, the combination of the two words creates a unique word, despite the fact that the two words don't sound alike. This is a great example of how spelling can sometimes be deceiving!