Synonyms

pacer

American

[pey-ser] / ˈpeɪ sər /

noun

a person or thing that paces.
a standard-bred horse that is used for pacing in harness racing.
a pacemaker.

pacer British

/ ˈpeɪsə /

noun

a horse trained to move at a special gait, esp for racing
another word for pacemaker

"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 pacer

First recorded in 1650–60; pace 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.

One fund that leans heavily on free cash yield, the Pacer U.S.

From Barron's • Dec. 26, 2025

“The No. 1 take is they are a machine,” said Sean O’Hara, president at Pacer ETFs.

From The Wall Street Journal • Nov. 20, 2025

Based on Pacer searches for federal cases related to the BBC, no case filed by the Trump administration has been filed.

From BBC • Nov. 14, 2025

Pacer Prasidh Krishna – who has 29 wickets from 17 ODIs – has been called up as replacement.

From Washington Times • Nov. 4, 2023

Next day the mustangs walked with heads held low, and in spite of the efforts of the Black Pacer at times they were less than a hundred yards ahead of their pursuer.

From Wild Animals I Have Known by Seton, Ernest Thompson

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