# functionality

/ˌfəŋkʃəˈnæɫɪti/ (US) · /fˌʌŋkʃənˈælɪti/ (UK)

Source: https://englishreference.com/word/functionality
Updated: 2026-06-20

## Senses

### 1. range of features

noun · CEFR B2

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

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

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

noun · CEFR B2

the quality of being useful and serving a clear purpose.

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

- When choosing a new car, he cared more about functionality than style.
- The architect's design was praised for its seamless blend of sleek modern aesthetics and everyday functionality.

### 3. trademark law

noun · CEFR C2 · Technical · American English · Formal

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

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

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

## Examples

- The new software update adds extra functionality to the app.
- The design team focused on improving the website's functionality to make it easier for customers to check out.
- While the interface was visually striking, the lack of basic functionality made the device nearly impossible for the average consumer to operate effectively.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.