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HomeWhich One?SpellingAltar vs Alter
ESEN
Which one to use?Intermediatenounverb

AltarvsAlter

'Altar' is the sacred table in a church or temple; 'alter' means to change or modify something.

Side-by-side comparison

Altar
noun

"Altar" is the noun: the sacred table or structure in a church or religious ceremony. Where rituals are performed.

  • The couple stood before the altar to exchange their vows.

  • Candles were lit on the altar before the ceremony.

  • The altar was decorated with white lilies for the baptism.

Alter
verb

"Alter" is the verb: to change or modify something. You alter a plan, a garment, or a decision. It has nothing to do with religion.

  • The deadline cannot be altered without the client's approval.

  • She altered the dress to make it shorter for the event.

  • The new data altered our understanding of the market significantly.

Common mistake

  • •Common mistake in wedding and contract contexts: "They stood before the alter" (correct: altar).
  • •Or "We cannot altar the contract" (correct: alter the contract).

Trick to remember it

  • •"Altar" ends in AR like a prominent destination.
  • •"Alter" ends in ER like other process verbs: filter, render, alter.

Quick rule

  • •"Altar" = the sacred table in a place of worship (noun).
  • •"Alter" = to change or modify (verb).

Did you know?

The phrase "alter ego" (another self) uses Latin "alter" (other, different). Cicero coined it to describe his closest friend as a second self. Today it refers to a secret identity, a character an author uses to express personal views, or the stage persona an artist adopts. David Bowie's Ziggy Stardust being a famous example.

Practise what you learned

Exercise 1 · Pick the right one

They stood together at the _____ and exchanged their vows.

Exercise 2 · Pick the right one

Can the tailor _____ the jacket so it fits better?

Exercise 3 · Form the word

Complete: "Moving abroad completely _____ d her perspective on life." (altar / alter)

Related word pairs

AcceptvsExcept

One means to receive or agree to something, the other means to exclude or not include.

AdvicevsAdvise

'Advice' is the guidance you receive (noun); 'advise' is the act of giving that guidance (verb).

AffectvsEffect

'Affect' is the verb meaning to influence something; 'effect' is the noun meaning result or consequence.

AislevsIsle

'Aisle' is the walkway between rows of seats or shelves; 'isle' is a small island.

BL

Bryan López

Founder of SpeakUP Academy

July 29, 2026

See all Spelling pairsExplore English suffixes
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