Every language consists on its basic elements that are called words.There are nine parts of speech in the English grammar: noun, pronoun, verb, adverb, adjective, preposition, conjunction, interjection and determiners.Some writes and websites count only eight parts of speech and place determiner under the category of adjectives.Morphology, a branch of linguistics, deals with the structure of words where we learn under which rules new words are formed, how we assigned a meaning to a word?Some different examples are: Boy, kite, fox, mobile phone, nature, etc.An individual word may function as more than one part of speech when used in various sentences.Etc.How to spell a word?