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n.
a formal declaration that documents a fact of relevance to finance and investment; the holder has a right to receive interest or dividends; "he held several valuable securities"
n.
a formal recommendation by a former employer to a potential future employer describing the person's qualifications and dependability; "requests for character references are all too often answered evasively"
n.
a type of security issued by a corporation (usually together with a bond or preferred stock) that gives the holder the right to purchase a certain amount of common stock at a stated price; "as a sweetener they offered warrants along with the fixed-income securities"
n.
a publication (or a passage from a publication) that is referred to; "he carried an armful of references back to his desk"; "he spent hours looking for the source of that quotation"