item

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A single article or unit in a collection, enumeration, or series.
• noun A clause of a document, such as a bill or charter.
• noun An entry in an account.
• noun A bit of information; a detail.
• noun A short piece in a newspaper or magazine.
• noun A romantically involved couple.
• adverb Also; likewise. Used to introduce each article in an enumeration or list.
• transitive verb To record, especially in an itemized list.

from The Century Dictionary.

• Also: a word used in introducing the separate articles of an enumeration, as the separate clauses or details of a will or the particular parts of an account or list of things.
• To make a note or memorandum of.
• noun An article; a separate particular; a single detail of any kind: as, the account consists of many items.
• noun An intimation; a reminder; a hint.
• noun A trick; fancy; caprice. —
• noun A paragraph in a newspaper; a scrap of news.

from the GNU version of the Collaborative International Dictionary of English.

• adverb Also; as an additional article.
• transitive verb To make a note or memorandum of.
• noun An article; a separate particular in an account.
• noun obsolete A hint; an innuendo.
• noun A short article in a newspaper; a paragraph.
• noun A topic or piece of information having the salacious character of gossip, especially a romantic relation between two people.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A distinct physical object.
• noun A line of text having a legal or semantic meaning.
• noun A matter for discussion in an agenda.
• noun informal Two people who are having a relationship with each other.
• noun psychometrics A question on a test, which may include its answers.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an individual instance of a type of symbol
• adverb (used when listing or enumerating items) also
• noun a distinct part that can be specified separately in a group of things that could be enumerated on a list
• noun a whole individual unit; especially when included in a list or collection
• noun a small part that can be considered separately from the whole
• noun an isolated fact that is considered separately from the whole