The words sari, sorry sound the same but have different meanings and spellings. Why do sari, sorry sound the same even though they are completely different words?
The answer is simple: sari, sorry are homophones of the English language.
An outer garment worn chiefly by women of India and Pakistan, consisting of a length of lightweight cloth with one end wrapped about the waist to form a skirt and the other draped over the shoulder or covering the head.
Feeling or expressing sympathy, pity, or regret: I'm sorry I'm late.
Worthless or inferior; paltry: a sorry excuse.
Causing sorrow, grief, or misfortune; grievous: a sorry development.
Definitions from The American Heritage® Dictionary of the English Language, 4th Edition and Wordnik.
Homophones (literally "same sound") are usually defined as words that share the same pronunciation, regardless of how they are spelled.