Synonyms of sub

sub 1 of 3

noun (1)

as in submarine

a large sandwich on a long split roll

we shared a tuna sub at lunch

Synonyms & Similar Words

• submarine
• hero
• torpedo
• hoagie
• poor boy
• grinder
• hoagy
• Italian sandwich
• po'boy
• Cuban sandwich

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

• substitute
• replacement
• backup
• surrogate
• assistant
• stand-in
• cover
• reserve
• relief
• proxy
• pinch hitter
• designated hitter
• fill-in
• locum tenens
• alternate
• deputy
• second
• delegate
• factor
• agent
• makeshift
• rep
• representative
• commissary
• apology
• attorney
• assignee
• successor
• stopgap
• procurator
• envoy
• understudy
• reliever
• superseder

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

• substitute
• spell
• cover
• stand in
• take over
• fill in
• step in
• pinch-hit
• double (as)
• relieve
• understudy

Example Sentences

Recent Examples of sub

Noun

Rutten said the meatball sub is especially popular. —Jenna Thompson, Kansas City Star, 19 Mar. 2025

The Harry Potter movie was watched more than 40 million times on Max last year and reached nearly 20% of the WBD streamer’s subs in the measured territories, placing it eighth on the list, according to the analysis firm. —Max Goldbart, Deadline, 17 Mar. 2025

Verb

So, Sporting subbed on Cam Duke to play as a second striker, and flipped the midfield triangle upside down, moving Remi Walter into a double pivot defensive midfield. —Daniel Sperry, Kansas City Star, 4 Apr. 2025

By the time Rozier was subbed out of the game, the Knicks were ahead by two points with 7:03 remaining in the second quarter. —Anthony Chiang, Miami Herald, 18 Mar. 2025