ENGLISH
REFERENCE

functionality

n.
US //ˌfəŋkʃəˈnæɫɪti// UK //fˌʌŋkʃənˈælɪti// func·tion·al·i·ty
  1. 1 range of features (n.)
    B2 Upper Intermediate Computing

    the set of functions or tasks that a computer program or piece of equipment can perform.

    the range of operations or capabilities provided by a software application or mechanical system.

    Example

    The new version of the app has much better functionality than the old one.

    Example

    The developers prioritised core functionality over aesthetic flourishes, ensuring the software remained stable under heavy processing loads.

    Usage

    Often used as an uncountable noun when referring to the general capability of a system.
  2. 2 practicality (n.)
    B2 Upper Intermediate

    the quality of being useful and serving a clear purpose.

    the quality of being functional or practical rather than merely decorative.

    Example

    When choosing a new car, he cared more about functionality than style.

    Example

    The architect's design was praised for its seamless blend of sleek modern aesthetics and everyday functionality.
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  1. 3 trademark law (n.)
    C2 Proficiency Technical American English Formal Law

    the rule that you cannot trademark a design if it is necessary for the product to work.

    the doctrine preventing the trademarking of product features that are essential to the use or purpose of the article.

    Example

    The court rejected the trademark because the shape of the bottle was based on functionality.

    Example

    Under the functionality doctrine, the manufacturer could not claim exclusive rights to the hexagonal nut design as it served a purely utilitarian purpose.

    Usage

    Primarily used in intellectual property and patent law contexts.

Origin

From functional + -ity.

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