Two letter words beginning with H include ha, he, hi, ho, hm and hy. They are all useful for constructing shorter words with a limited amount of letters. All these two letter words can be used in any language where the alphabet consists of twenty-six characters. Depending on the language in use, they may have different meanings or pronunciations. Ha is often used to express surprise or excitement while he can mean a male person, an interrogative pronoun or an exclamation of disapproval. Hi is commonly used as an informal form of greeting. Ho tends to refer to an expression of understanding or agreement while hm is generally used as a sign of contemplation. Finally, hy is usually associated with the word ‘hyphen’.