noun a periodical publication containing articles and written by experts in a particular field
noun a branch of knowledge or study dealing with a body of facts or truths systematically arranged and showing the operation of general laws
noun A word that refers to a person, place, thing, event, substance, or quality.
adjective A word that describes or modifies a noun or pronoun.
adverb A word that modifies a verb, adjective, or other adverb, indicating manner, time, place, or degree.
article A word that is used to define a noun as specific or unspecific.