functionality

British  

/ ˌfʌŋkʃənˈælɪtɪ /

noun

1. the quality of being functional

2. computing a function or range of functions in a computer, program, package, etc

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Explanation

The functionality of something is its usefulness, or how well it does the job it's meant to do. You might question the functionality of your new smartphone if you can't get it to send simple text messages. The noun functionality is often used to talk about technology and the new things it's capable of: "The functionality of the new computer model is incredible!" But you can also use it in a general way, to mean "practicality" or "capability." So you might admire the functionality of your neighbor's very basic, simple backyard grill (as opposed to your fancy gas model), which works perfectly well to cook hamburgers.

Example Sentences

"Back button hijacking interferes with the browser's functionality, breaks the expected user journey, and results in user frustration," Google said in its post.

From BBC • Apr. 15, 2026

And while the Apollo capsules had room for three astronauts, the Orion craft carries four, as equipment was made to be more compact without a loss of functionality.

From Barron's • Apr. 4, 2026

We’d play at a dive bar or play at a wedding, but my childhood friendships were linked to to the functionality of music in my life.

From Los Angeles Times • Mar. 30, 2026

Before AI systems are even put on the market, the AI Act alone requires predeployment risk assessments and mitigation systems, high-quality data sets, detailed logs, documentation of system functionality, and human oversight.

From The Wall Street Journal • Mar. 23, 2026

Emotion, functionality and the everyday experience of music: Where does music education fit?

From "Music and the Child" by Natalie Sarrazin