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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

Explanation

Use the adverb alongside when two things are right next to each other, like a boat and a dock or a hunter and her loyal dog. If you pull up alongside your friend's car in a parking lot, it means that you've parked directly beside it. Alongside can also imply cooperation, as when a baker's assistant works alongside him, kneading dough and wiping flour off the counter. Alongside was once a phrase, either "along side" or "along the side," both primarily used in a nautical sense, to talk about boats. In the 1700s it became a single word.

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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.

The mini-Neptune was found orbiting alongside a hot Jupiter, something astronomers rarely see.

From Science Daily • May 7, 2026

He was found guilty under the National Security Act of assisting a foreign intelligence service alongside Chung Biu "Bill" Yuen, 65, who was initially his contact with the Hong Kong authorities.

From BBC • May 7, 2026

Many screenless trackers require subscriptions for detailed insights, and some people wear them alongside smartwatches.

From The Wall Street Journal • May 7, 2026

It’s shorthand for “maximize” and is often used alongside a noun or a specific aspect of life that needs improving.

From Salon • May 7, 2026

Ahead, the winding river took a sharp turn and traveled alongside Fernlight Road, then carved back through Deadwood in the shape of a tight horseshoe, forming a bend of shallow waters.

From "The Undead Fox of Deadwood Forest" by Aubrey Hartman