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

Synonyms & Similar Words

Relevance

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

Synonyms & Similar Words

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

Synonyms & Similar Words

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

Sandwiches will include the Maestro (an Italian sub with ham, salami, pepperoni, Chicago-style giardiniera, homemade balsamic). — Kansas City Star, 26 Aug. 2026 The navy agreed to support the project—if Argo first surveyed the two subs. — Encyclopedia Britannica, 24 Aug. 2026

Verb

Luke Brennan subbed in for Atlanta United in the 62nd minute and left with an injury in the 77th. — ABC News, 23 Aug. 2026 Bishop Moore has also subbed out its junior quarterback, Blake McCullough. — Buddy Collings, The Orlando Sentinel, 14 Aug. 2026 See All Example Sentences for sub

Recent Examples of Synonyms for sub

Noun

Nuclear Children follows 18-year-old Isla Sparrow who, after the death of her father in a submarine accident, hopes to escape her grieving family and flee to university.

— Jesse Whittock, Deadline, 26 Aug. 2026
Once the submarine work was done, Ballard could use any remaining time in the expedition to search for the Titanic.

— Encyclopedia Britannica, Encyclopedia Britannica, 24 Aug. 2026

Definition of submarine

Noun

Lawmakers could offer substitute proposals, with final votes after 100 hours of debate.

— Kevin Freking, Fortune, 27 Aug. 2026
Quinta de la Rosa Extra Dry White Port Perfumed with a note of pear, this offering is a great lower-alcohol substitute for gin or vodka in most cocktails but equally quaffable when splashed with tonic or seltzer.

— Joseph Hernandez, Bon Appetit Magazine, 26 Aug. 2026

Definition of substitute

Noun

Horrific details are emerging and a young girl is being hailed as a hero after authorities said a shooting and fire left multiple people dead at a family's home in Montana.

— CBS News, CBS News, 26 Aug. 2026
And that all starts with Hawks themselves, a wonderfully charismatic hero who’s nearly impossible to dislike.

— Hayes Madsen, Space.com, 26 Aug. 2026

Definition of hero

Noun

The superstructure on the Market Street Bridge over Amtrak and the Schuylkill Expressway is supposed to be partially demolished and then replaced, and replacements will be made to the sidewalk and decks adjacent to the bridge.

— Kaitlyn McCormick, USA Today, 26 Aug. 2026
The wireless connection can also allow equipment manufacturers to avoid adding openings specifically for battery replacement or charging.

— Neetika Walter, Interesting Engineering, 26 Aug. 2026

Definition of replacement

Browse Nearby Words

suavity

sub

subadult

See all Nearby Words

Cite this Entry

Style

“Sub.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/sub. Accessed 1 Sep. 2026.

Copy Citation

Synonyms of sub

noun (1)

noun (2)

verb

Example Sentences

Browse Nearby Words

Cite this Entry

More from Merriam-Webster on sub

More from Merriam-Webster

Word of the Day

conscientious

Popular in Grammar & Usage

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?

Why does English have so many silent letters?

7 Pairs of Commonly Confused Words

Popular in Wordplay

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Even More Words That Sound Like Insults But Aren't

Even More Bird Names that Sound Like Insults (and Sometimes Are)

12 Lovely and Unusual Words for the Natural World

Popular

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Games & Quizzes