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Synonyms

fitter

American  
[fit-er] / ˈfɪt ər /

noun

  1. a person or thing that fits.

  2. a person who fits garments.

  3. a worker who fits together or adjusts the parts of machinery.

  4. a person who supplies and fixes fittings or fixtures.

  5. a person who furnishes or equips with whatever is necessary for some purpose.

fitter British  
/ ˈfɪtə /

noun

  1. a person who fits a garment, esp when it is made for a particular person

  2. a person who is skilled in the assembly and adjustment of machinery, esp of a specified sort

    an electrical fitter

  3. a person who supplies something for an expedition, activity, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of fitter

First recorded in 1650–60; fit 1 + -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As we emerge from the drowsy holidays with aspirations of being fitter and more productive, one social-media trend jumps out: How about waking up everyday at 5 a.m.?

From The Wall Street Journal • Jan. 11, 2026

"What else can we wish for? At a time like this, nothing else comes to mind," said Kostiantyn Biden, a local ceiling fitter whose apartment building was left without power and water during the blackout.

From Barron's • Dec. 31, 2025

After making his debut for England in the summer, he was challenged with becoming fitter and working hard in defence to improve his chances of more regular game time in England's midfield.

From BBC • Nov. 21, 2025

"The fitter you are, the more metabolically efficient your body becomes," Professor La Gerche explains.

From Science Daily • Nov. 1, 2025

Almost an hour had passed before the fitter swayed to a stop.

From "A Clash of Kings" by George R.R. Martin

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.