Definitions of logo on the Web:

* Short for "logotype." Sign, name, or trademark of an institution, firm, or publication, consisting of letter forms borne on one printing plate or piece of type.
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* A company or product identifier - for example, a representation of a company's initials or a drawing that is the exclusive property of that company. In publishing usage, a virtual equivalent to the trademark. (see: colophon)
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* Name, symbol or trademark of a company or organization. Short for logotype.
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* A recognizable graphic design element, representing an organization or product.
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* A company, partnership or corporate creation (design) that denotes a unique entity. A possible combination of letters and art work to create a "sole" entity symbol of that specific unit.
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* Short for logotype. Often used to denote a specially styled company name designed as part of a corporate image.
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* Short for logotype.
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* A mark or symbol created for an individual, company, or product that translates the impression of the body it is representing into a graphic image.
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* A textual and/or graphic image that identifies a company or product. One IU logo is referred to as the "block IU." The IU seal is frequently used as a logo in academic materials.
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* The distinctive visual symbol for the brand that should represent its core values and attributes.
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* A symbol used as an identifying mark of an organization.
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* The copyrighted symbol used to represent a corporation, company or individual.
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* A word or name that's stylized in a graphic way; used to refer to standing heads in a newspaper.
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* In Graphic design, word or words in type. They identify a company, brand name, group or project.
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* A combination of characters and/or graphics to create a single design that is used to identify a company or organization. it is often trademarked and is always included on all company printed materials and ads.
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* an identifying symbol used to advertise and promote an organization, event, product or service. Usually, such symbols combine pictorial and textual elements in a distinctive manner. When consisting solely of stylized textual elements, such symbols are referred to as logotypes or wordmarks.
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* Usually the following text printed in four lines centered at the bottom of the verso: Printed in the United States of America from author submitted camera ready copy by: The Gregath Publishing Company PO Box 505 - Wyandotte, OK 74370
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* A logo is a graphical, illustrative or typographical representation of a company's identity. The word "logo" is short for "logotype."
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* a graphical design associated with a specific company, product or service.
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* A graphic element used to identify a company, product, service, or brand. The logo is typically trademarked to protect it from use by other companies.
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* Title of a comic book as it appears on the cover or title page.
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* A drawing, illustration, symbol, abbreviation, lettering style, or word that is legally registered by a company and used for identification purposes. Also known as "trademark".
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* A trademark, unique to each particular company.
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* Multiple digit hand punch used to punch date digits into a hub or die (may have 2,3, or 4 digits).
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* Identification mark used by an individual, business or organization as a representation symbol.
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* a company emblem or device
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Source: Google