Synonyms of back

back 1 of 5

adverb

1

as in ago

earlier than the present time

that's longer back than I can remember

Synonyms & Similar Words

• ago
• since
• syne
• agone

Antonyms & Near Antonyms

• hence

2

as in around

toward the opposite direction

turned back for one last comment

Synonyms & Similar Words

• around
• down
• backward
• round
• about
• behind
• downward
• rearward
• across
• counter
• reversely
• counterclockwise
• athwart
• obversely
• widdershins

Antonyms & Near Antonyms

• clockwise
• deasil

3

as in backward

toward the rear

concert security asked the crowd to move back

Synonyms & Similar Words

• backward
• rearward
• astern
• counterclockwise
• reversely
• widdershins
• sternforemost
• anticlockwise
• left-handedly
• left-handed
• retrograde

Antonyms & Near Antonyms

• forth
• forward
• on
• along
• ahead
• before
• forwards
• onward

back

2 of 5

noun (1)

ˈbak 

1

as in rear

a behind part or surface

the back of the page was blank

Synonyms & Similar Words

• rear
• tail
• reverse

Antonyms & Near Antonyms

• front
• face
• forehead
• forepart

2

as in jugular

a vulnerable point

a candidate needing a loyal aide who can be relied upon to always watch his back

Synonyms & Similar Words

• jugular
• soft spot
• downfall
• underbelly
• Achilles' heel
• undoing
• chink
• ruin
• tragic flaw
• hamartia

back

3 of 5

verb

1

as in to advocate

to promote the interests or cause of

she enthusiastically backed the plan to renovate and upgrade the school's facilities

Synonyms & Similar Words

• advocate
• endorse
• support
• embrace
• adopt
• champion
• help
• stand up for
• go in for
• patronize
• forward
• assist
• stick up for
• aid
• hold a brief for
• plunk (for)
• plump (for)
• go to bat for
• plonk (for)
• further
• reinforce
• save
• second
• bolster
• side (with)
• preach
• rescue
• buttress
• prop (up)
• espouse
• abet
• boost
• advance
• plug
• bail out
• backstop
• deliver
• talk up

Antonyms & Near Antonyms

• interfere
• oppose
• thwart
• frustrate
• sabotage
• fail
• let down
• desert
• foil
• disappoint
• baffle

2

as in to aid

to provide (someone) with what is useful or necessary to achieve an end

a number of influential people have already agreed to back the candidate

Synonyms & Similar Words

• aid
• assist
• help
• support
• forward
• reinforce
• save
• bear a hand
• further
• prop (up)
• abet
• bolster
• backstop
• facilitate
• promote
• guide
• encourage
• comfort
• to stand one in good stead
• endorse
• sponsor
• launch
• foster
• ease
• rescue
• minister (to)
• serve
• attend
• benefit
• sustain
• champion
• advance
• succor
• patronize
• buttress
• mentor
• care (for)
• bail out
• boost
• advise
• profit
• favor
• counsel
• nurture
• oblige
• deliver
• embolden
• hearten

Antonyms & Near Antonyms

• hinder
• bar
• block
• restrain
• interfere
• hold back
• impede
• oppose
• hamper
• inhibit
• fail
• strangle
• obstruct
• constrain
• thwart
• balk
• let down
• handicap
• desert
• frustrate
• sabotage
• foil
• inconvenience
• discourage
• disappoint
• baffle
• hurt
• retard
• damage
• harm
• stifle
• repress
• injure
• straiten
• stunt
• dishearten

3

as in to reinforce

to provide evidence or information for (as a claim or idea)

the author needs to back her thesis with more facts

Synonyms & Similar Words

• reinforce
• bolster
• prove
• support
• buttress
• confirm
• shore (up)
• corroborate
• establish
• verify
• substantiate
• validate
• affirm
• avouch

Antonyms & Near Antonyms

• undermine
• weaken
• undercut

back

4 of 5

adjective

as in hind

being at or in the part of something opposite the front part

she carried all the presents in the back door, as the children were playing in the front yard

Synonyms & Similar Words

• rear
• hind
• aft
• after
• posterior
• hinder
• dorsal
• rearward
• hindmost

Antonyms & Near Antonyms

• front
• forward
• anterior
• frontal
• fore
• ventral

backer

5 of 5

noun (2)

1

as in supporter

a person who actively supports or favors a cause

backers of prison reform held a rally in front of the statehouse

Synonyms & Similar Words

• supporter
• proponent
• advocate
• advocator
• exponent
• promoter
• booster
• friend
• protagonist
• apostle
• white knight
• champion
• paladin
• tub-thumper
• high priest
• hierophant
• true believer
• espouser
• adherent
• expounder
• stalwart
• herald
• gospeler
• loyalist
• disciple
• follower
• interpreter
• cheerleader
• cohort
• partisan
• fellow traveler
• encourager
• applauder

Antonyms & Near Antonyms

• opponent
• enemy
• adversary
• antagonist
• foe
• rival
• critic
• belittler
• faultfinder

2

as in sponsor

a person who takes the responsibility for some other person or thing

all financial backers will be expected to offer some input into the company's decisions

Synonyms & Similar Words

• sponsor
• patron
• supporter
• guarantor
• benefactor
• advocate
• surety
• teacher
• coach
• underwriter
• mentor
• champion
• cosponsor
• angel
• chaperone
• cosigner
• cosignatory

3

as in ally

someone associated with another to give assistance or moral support

the student's backers spoke at the school board meeting on her behalf

Synonyms & Similar Words

• supporter
• ally
• sympathizer
• colleague
• friend
• confidant
• fellow traveler
• assistant
• partner
• abettor
• associate
• collaborator
• bedfellow
• confederate
• buddy
• accomplice
• helper
• fellow
• accessory
• pal
• companion
• coadjutor
• collaborationist
• well-wisher
• adjunct
• chum
• cohort
• empathizer
• familiar
• comrade
• intimate
• coalitionist
• crony
• mate

Antonyms & Near Antonyms

• enemy
• detractor
• opponent
• foe
• adversary
• belittler

Synonym Chooser

How is the word back different from other verbs like it?

Some common synonyms of back are advocate, champion, support, and uphold. While all these words mean "to favor actively one that meets opposition," back suggests supporting by lending assistance to one failing or falling.

refusing to back the call for sanctions

When can advocate be used instead of back?

While the synonyms advocate and back are close in meaning, advocate stresses urging or pleading.

advocated prison reform

Where would champion be a reasonable alternative to back?

The words champion and back are synonyms, but do differ in nuance. Specifically, champion suggests publicly defending one unjustly attacked or too weak to advocate his or her own cause.

championed the rights of children

When might support be a better fit than back?

In some situations, the words support and back are roughly equivalent. However, support is least explicit about the nature of the assistance given.

supports waterfront development

When is it sensible to use uphold instead of back?

The words uphold and back can be used in similar contexts, but uphold implies extended support given to something attacked.

upheld the legitimacy of the military action

Example Sentences

Recent Examples of back

Adverb

With the high humidity back in place, any storms that develop will be capable of producing torrential downpours that could lead to flash flooding. — Matthew Villafane, CBS News, 10 Aug. 2026

Rookie center back Heather Gilchrist made her NWSL debut for Bay, which signed her to a three-year deal in December after her collegiate career ended with a national championship win over Stanford. — Michael Nowels, Mercury News, 10 Aug. 2026

Noun

More than a rebrand From a hardware standpoint, this is very much a continuation of the E-Ray line, just with the new motor at the front and engine at the back. — Tim Stevens, ArsTechnica, 4 Aug. 2026

Chelsea are close to finalising an agreement with Rayo Vallecano for left-back Pep Chavarria. — David Ornstein, New York Times, 4 Aug. 2026

Verb

African administrators back Infantino Leading African football administrators have sent messages of support as Infantino looks to the continent’s 54 members for backing. — Reuters, NBC news, 5 Aug. 2026

Polymarket, backed by up to $2 billion from the owner of the New York Stock Exchange, opened its US app to the general public in May. — Zennon Kapron, Forbes.com, 5 Aug. 2026

Adjective

The Iran war has put DP World on the back foot at home, with activity at Jebel Ali port in Dubai plunging some 90% after the Strait of Hormuz closed, the Financial Times reported. — Kelsey Warner, semafor.com, 10 Aug. 2026

Western uses its running backs in the passing game, too, so look for senior backs Johnathon Hardy and Kelton Strickland to come out of the back field to catch passes. — Steve Fryer, Oc Register, 10 Aug. 2026

Noun

Taiwan sources most of its weapons from the United States, which is the island’s main informal backer in the face of territorial claims from China. — ABC News, 5 Aug. 2026

The Spanish prime minister visited Algeria, the primary political and financial backer of the Polisario Front, days before the Ceuta episode. — Kelsey Norman, The Conversation, 5 Aug. 2026

Phrases Containing back

• (the) back of beyond
• back away
• back down
• back of
• back off
• back out
• back talk
• come back
• cut back
• drop back
• fall back
• fall back on
• flash back (to)
• get back
• go back on
• hang back
• hark back (to)
• harken back (to)
• hearken back (to)
• hold back
• in back of
• kick back
• knock back
• pat on the back
• pay back
• roll back
• snap back
• stab in the back
• take back
• turn back
• turn one's back on

Video

When Body Parts Are Also Verbs

Head, shoulders, metaphors, and toes