n (literary or archaic) A relationship or relation (to something).
n A measurement one can compare (some other measurement) to.
n Information about a person, provided by someone (a referee) with whom they are well acquainted.
n (UK, Ireland) A person who provides this information; a referee.
n (often attributive) A reference work.
n The act of referring: a submitting for information or decision.
n (semantics) A relation between objects in which one object designates, or acts as a means by which to connect to or link to, another object.
n (academic writing) A short written identification of a previously published work which is used as a source for a text.
n (academic writing) A previously published written work thus indicated; a source.
n (computing) An object containing information which refers to data stored elsewhere, as opposed to containing the data itself.
n (programming, character entity) A special sequence used to represent complex characters in markup languages, such as ™ for the ™ symbol.
n (obsolete) Appeal.