
On the other hand, ρο is a problem; it is the Greek equivalent of the English 'r', but looks like the English 'p'.
The letter 'ύψιλον' looks like an English 'u' in lowercase, and an English 'Y' in uppercase. It is, in fact, a vowel that sounds, in modern Greek, exactly like γιώτα and ήτα.
Note that the σίγμα (the equivalent to the English 's') has two lowercase forms. The first form ('σ') is used at the beginning and in the middle of words. The second form ('ς') is only used at the end of a word: σίγμα, μαθητής