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Synonyms

alongside

American  
[uh-lawng-sahyd, uh-long-] / əˈlɔŋˈsaɪd, əˈlɒŋ- /

adverb

  1. along, by, at, or to the side of something.

    We brought the boat alongside.

preposition

  1. beside; by the side of.

    The dog ran alongside me all the way.

  2. Informal. alongside of, compared with.

    Alongside of his brother, he is no student at all.
alongside British  
/ əˈlɒŋˌsaɪd /

preposition

  1. (often foll by of) along the side of; along beside

    alongside the quay
"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

adverb

  1. along the side of some specified thing

    come alongside
"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 alongside

First recorded in 1700–10; along + side 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.

His deadlines have shifted repeatedly, alongside claims that ongoing talks are "very good" and "productive" - talks Tehran denies have taken place.

From BBC • Apr. 4, 2026

In fact, the organization encourages parents to learn alongside their children.

From MarketWatch • Apr. 4, 2026

The researchers conclude that public health guidelines in Italy should be updated to include additional tools alongside BMI.

From Science Daily • Apr. 3, 2026

A heavier model, the 120-kilo Capa-X -- which can operate for 10 hours on similar missions but also alongside manned aircraft -- is currently awaiting contracts.

From Barron's • Apr. 3, 2026

The sketches make you feel as if you’re looking into the cadaver alongside Leonardo—that this body has been opened up in front of you.

From "The Mona Lisa Vanishes" by Nicholas Day

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.