fathom

verb

Definition of fathomnext
as in to plumb
to measure the depth of (as a body of water) typically with a weighted line the pilot had to continually fathom the river, which drought conditions had lowered to unprecedented levels

Synonyms & Similar Words

Relevance

Example Sentences

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.
Recent Examples of fathom Of course, the average person can't fathom this. — Ralphie Aversa, USA Today, 25 June 2026 The amount of love and support from our Colorado Springs community and beyond is overwhelming to fathom. — Christa Swanson, CBS News, 22 June 2026 Mike Heller couldn’t fathom Hollywood Hardware’s sign going to waste. — Graham Womack, Sacbee.com, 20 June 2026 The idea struck me as hard to fathom. — Lila Shroff, The Atlantic, 18 June 2026 See All Example Sentences for fathom
Recent Examples of Synonyms for fathom
  1. plumb
  2. scale
  3. span
Verb
  • The Nancy Grace Roman Space Telescope will soon join the ranks of iconic observatories like the Hubble and James Webb telescopes – plumbing the far reaches of the cosmos to answer some of life's greatest mysteries.
    — Eric Lagatta, USA Today, 25 Aug. 2026
  • It's also plumbed ready to accept a washer/dryer, and a water heater is installed.
    — New Atlas, New Atlas, 7 Aug. 2026
Definition of plumb
Verb
  • The scientists now plan to collaborate with cement industry stakeholders to determine if the technology can be scaled for mass production.
    — Georgina Jedikovska, Interesting Engineering, 27 Aug. 2026
  • As set out in a recent regulatory filing, DraftKings has agreed to pay up to $30 million in a marketing agreement with media platform HardScope, Kalish’s newest endeavor to help scale creator brands.
    — Camila Grigera Naón, Fortune, 26 Aug. 2026
Definition of scale
Verb
  • The company, founded in 1995, has grown through a combination of scale and acquisitions, building an operation that spans much of the food supply chain.
    — Brandon Gomez, CNBC, 28 Aug. 2026
  • Position players would have to stay on the IL for at least one full Monday-to-Monday span, with pitchers spanning two of those stretches.
    — Evan Drellich, New York Times, 28 Aug. 2026
Definition of span

Browse Nearby Words

fathers (on)
fathom
fathomable
See all Nearby Words

Podcast

Cite this Entry

“Fathom.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fathom. Accessed 1 Sep. 2026.

Copy Citation

More from Merriam-Webster on fathom

Britannica.com: Encyclopedia article about fathom

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