In Thai, when the word class Pronoun is mentioned, Thai people always think of the word สรรพนาม (sapphanaam). This word means literally 'different words used as nouns. Anyway, to make it clear, some examples of สรรพนาม are given, for examples, I, we, you, they, he, she and it. They are words of the person system. Literally, the term Pronoun can be separate as Pro- and noun. Pro- means 'refer to' or 'substitute for'. In Thai, another term is given คำแทน (kham thaen), which means words used to refer to or substitute for things.