Thesaurus results for SUB

sub 1 of 3

noun (1)

Definition of sub

as in submarine

a large sandwich on a long split roll we shared a tuna sub at lunch

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sub

2 of 3

noun (2)

ˈsəb

as in substitute

a person or thing that takes the place of another we had a sub in English today, so we didn't get our test results back

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sub

3 of 3

verb

as in to substitute

to serve as a replacement usually for a time only the weekend anchor is subbing for the station's main anchor all this week she subbed for middle school teachers in the district as needed

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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 sub

Noun

Particularly, researchers improved monolithic perovskite-silicon tandem solar cells by adding an ultra-thin seed layer of cesium chloride between the sub-cells. — Mrigakshi Dixit, Interesting Engineering, 26 Aug. 2026 Sandwiches will include the Maestro (an Italian sub with ham, salami, pepperoni, Chicago-style giardiniera, homemade balsamic). — Kansas City Star, 26 Aug. 2026

Verb

Roy Clark could show up at Felix and Oscar’s New York apartment in The Odd Couple to demonstrate his virtuoso pickin’ skills and be summoned to Burbank to sub in for Johnny Carson as a guest host of The Tonight Show. — David Kamp, HollywoodReporter, 27 Aug. 2026 Once Pratt reached first base for a single, Murphy subbed him out for a pinch runner. — Will Sammon, New York Times, 26 Aug. 2026 See All Example Sentences for sub

Recent Examples of Synonyms for sub

Noun

The submarine’s return also followed an intensive testing and certification process.

— Kaif Shaikh, Interesting Engineering, 1 Sep. 2026
Washington is building a new intercontinental ballistic missile, strategic bomber, and ballistic missile submarine.

— Jeffrey Lewis, Foreign Affairs, 1 Sep. 2026

Definition of submarine

Noun

With substitute Danny Imray, another new face at The Racecourse Ground, setting Ekomie up for his first goal in English football, Wrexham look well served in what has been a key area throughout Parkinson’s five years at the helm.

— Richard Sutcliffe, New York Times, 3 Sep. 2026
Somehow, this all dovetails with the fact that Davis and Friend were themselves substitutes for Greta Lee and Andrew Scott, who were cast as the leads when the film was announced in 2024.

— Leslie Felperin, HollywoodReporter, 2 Sep. 2026

Definition of substitute

Noun

Before Bret can continue to self-identify as Shakespeare’s most famous hero, he’s questioned by Detectives Donaldson and Fregosi, who wonder if Bret isn’t being honest about the nature of his relationship with Matt.

— Louis Peitzman, Vulture, 3 Sep. 2026
The problem is exacerbated by Mark Wahlberg, pretty handily the most constitutionally unlikely Burton hero of all time.

— Jesse Hassenger, Entertainment Weekly, 2 Sep. 2026

Definition of hero

Noun

Sanctioning that deal was always dependent on Liverpool being able to recruit a suitable replacement for the Netherlands international at an acceptable price.

— James Pearce, New York Times, 2 Sep. 2026
That began a career-threatening battle with back injuries that includes seven surgeries since 2014 — several microdiscectomies, a 2017 lumbar fusion and most recently a lumbar disc replacement performed in October 2025.

— Steve Henson, Los Angeles Times, 2 Sep. 2026

Definition of replacement

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suavity

sub

subadult

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Style

“Sub.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sub. Accessed 4 Sep. 2026.

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Synonyms of sub

noun (1)

noun (2)

verb

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