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
• grinder
• hoagie
• 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

Moving My Stuff to the sub-menu, on the other hand, seems counterintuitive. —Will Greenwald, PC Magazine, 29 Apr. 2026

By the way, how about the prices of subs these days. —Joe Kinsey Outkick, FOXNews.com, 29 Apr. 2026

Verb

Up front, Lukas Reichel will be going in for James Hagens on the third line and on the second power-play unit while on the back end, Jordan Harris subbed in for Mason Lohrei on the second pairing with Hampus Lindholm in Saturday’s practice at Warrior Ice Arena. —Stephen Conroy, Hartford Courant, 25 Apr. 2026

Galaxy forward Joao Klauss, who was subbed off late in Saturday’s game against FC Dallas, will undergo left foot surgery and be sidelined until after the World Cup break, Coach Greg Vanney said Wednesday. —Damian Calhoun, Daily News, 23 Apr. 2026