item (Noun) — A distinct part that can be specified separately in a group of things that could be enumerated on a list. ex. "he noticed an item in the New York Times" ex. "she had several items on her shopping list"
item (Noun) — A small part that can be considered separately from the whole.
item (Noun) — A whole individual unit; especially when included in a list or collection. ex. "they reduced the price on many items"
item (Noun) — An isolated fact that is considered separately from the whole. ex. "several of the items are similar"
item (Noun) — An individual instance of a type of symbol.
item (Adverb) — (used when listing or enumerating items) also. ex. "a length of chain, item a hook"