How to spell grammar
grammar
Not grammer.
The trap
The word grammar ends -ar, and grammer gives it the -er ending of hammer and summer. Grammatical stresses that syllable and gives the A back: gram-mat-i-cal.
An unstressed vowel flattens to the same sound whatever letter spells it, so the ear cannot tell them apart. A relative that stresses the syllable gives the letter back.
What it means
noun. The whole system and structure of a language or of languages in general, usually taken as consisting of syntax and morphology.
Other words with this trap
Try it on real words
Five words, read aloud and typed from memory with autocorrect off. About a minute, no signup.
Play today's Daily FiveSpellingIQ is a skill rating for spelling ability, not a clinical or psychometric IQ measure. American English is canonical; common variants are accepted.