An altar is a place or raised structure used for worship or a ceremony. Alter is a verb meaning change. The two words sound alike in many accents, so check whether the sentence names a thing or an action.
See the noun and the verb in context
- “The couple exchanged vows at the altar.” The word names a place used in the ceremony.
- “Rain forced us to alter our plans.” The word names the action of changing the plans.
Test the verb by substituting change
If change fits, write alter. A tailor can alter a jacket, and the resulting changes are alterations. In at the altar, the words at the help you spot the noun.
Try it
“The florist will ___ the arrangement that goes beside the ___.”
Show the answer
Use alter for changing the arrangement and altar for the place where it will go.
See also Aisle vs. Isle.
