market share

noun

: the percentage of the market for a product or service that a company supplies

Examples of market share in a Sentence

The company has gained market share in the past year. companies working to increase their market shares
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
According to data from market research firm Sensor Tower, OpenAI's ChatGPT market share declined to around 46% as of May this year. — CNBC, 28 Aug. 2026 The growing popularity of Chinese automakers has also eaten into the company’s global market share. — Bryan Hood, Robb Report, 26 Aug. 2026 The company’s stock would go on to soar during the pandemic but, in the last year, the arrival of major new competition in the form of prediction markets has undercut its market share. — Camila Grigera Naón, Fortune, 26 Aug. 2026 There’s a scramble amid startup platforms to gain market share and become the brand that is synonymous with the burgeoning medium. — Cynthia Littleton, Variety, 21 Aug. 2026 See All Example Sentences for market share

Word History

First Known Use

1918, in the meaning defined above

Time Traveler
The first known use of market share was in 1918

Rhymes for market share

See All Rhymes for market share

Browse Nearby Words

market-ripe
market share
marketstead
See all Nearby Words

Cite this Entry

“Market share.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/market%20share. Accessed 1 Sep. 2026.

Copy Citation

Legal Definition

market share

noun
: the percentage of the market for a product or service that a company supplies
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?

Why does English have so many silent letters?

7 Pairs of Commonly Confused Words
See More

Popular in Wordplay

See More

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Even More Words That Sound Like Insults But Aren't

Even More Bird Names that Sound Like Insults (and Sometimes Are)

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
skateboard-dog-hat
Wordmaxxing Slang Quiz Give your vocabulary a glow up by getting sendy w...
See All