item a whole individual unit; especially when included in a list or collection; "they reduced the price on many items" item an isolated fact that is considered separately from the whole; "several of the details are similar"; "a point of information" item a distinct part that can be specified separately in a group of things that could be enumerated on a list; "he noticed an item in the New York Times"; "she had several items on her shopping list"; "the main point on the agenda was taken up first" item an individual instance of a type of symbol; "the word`error'' contains three tokens of `r''" item a small part that can be considered separately from the whole; "it was perfect in all details" item (used when listing or enumerating items) also; "a length of chain, item a hook"-Philip Guedalla
thing a separate and self-contained entity thing an action; "how could you do such a thing?" thing an artifact; "how does this thing work?" thing an entity that is not named specifically; "I couldn''t tell what the thing was" thing any attribute or quality considered as having its own existence; "the thing I like about her is ..." thing a vaguely specified concern; "several matters to attend to"; "it is none of your affair"; "things are going well" thing a special abstraction; "a thing of the spirit"; "things of the heart" thing a special objective; "the thing is to stay in bounds" thing a statement regarded as an object; "to say the same thing in other terms"; "how can you say such a thing?" thing an event; "a funny thing happened on the way to the..." thing a persistent illogical feeling of desire or aversion; "he has a thing about seafood"; "she has a thing about him" thing a special situation; "this thing has got to end"; "it is a remarkable thing"
Item (n.): A single article or unit in a collection, enumeration or series. Thing (n.): A material object without life or consciousness; an inanimate object.