What is irony in Pygmalion?

In "Pygmalion," irony is used to highlight the contrast between appearance and reality, such as when Eliza transforms from a lower-class flower girl into a refined lady but still faces challenges due to her origins. Another example is Henry Higgins' belief that he can control and shape Eliza's speech and manners, only to realize that he cannot manipulate her independent will and spirit. Irony also arises from the characters' misunderstandings and misinterpretations of each other's intentions and social roles.