25 Commonly Misspelled English Words

25 Commonly Misspelled Words (with Memory Tricks)

This is a curated practice list, not a measured national ranking. The “wrong” column shows a familiar error pattern for each word; check the linked dictionary entry when a spelling, meaning, or regional variant matters to your writing.

How These 25 Words Break Down by Error Pattern

Almost every word above falls into one of five recurring traps. Unstressed vowels (where the spelling gives no clue to the sound) and double-letter confusion account for the largest share - learn the pattern and you fix a whole cluster of words at once.

Pattern 1: Double-Letter Words

About 30% of common misspellings involve getting double letters wrong, usually writing one where two are needed, or doubling a letter that should be single. English pronunciation gives almost no clue about doubling, so these words must be memorized individually.

The most reliable method: learn the morphology (word parts). Accommodate comes from ad- + com- + modus (measure). The prefix ad- assimilates to ac-, giving two c's. The root com- contributes another consonant before modus, giving two m's.

Key double-letter words to memorize: accommodate, occurrence, embarrass, necessary (one collar, two socks: 1 c, 2 s's), and misspell itself (mis + spell, both words keep all their letters).

Pattern 2: The ie/ei Rule (and Its Exceptions)

The classic rule: i before e, except after c, or when sounding like "ay" as in neighbor and weigh. This covers most cases but has notable exceptions that trip people up.

Weird is the most notable exception, it violates the ie rule and must simply be memorized. See also the their/there confusable.

Why Weird is Weird

Weird is the word that is often used to illustrate that the ie/ei rule has exceptions. It comes from Old English wyrd, meaning fate or destiny (the noun behind "the weird sisters" in Shakespeare's Macbeth). The word never had an ie sequence in its history; the "ei" reflects an Old English vowel sound that was not subject to the Norman French ie/ei convention at all. "Weird" simply predates the rule. This is a case where etymology explains the exception: instead of trying to remember whether it breaks the rule, remember that it is an Old English word where the rule never applied.

Pattern 3: Unstressed Vowels (Schwa Sounds)

The schwa, that neutral "uh" sound, is the most common vowel sound in English. In unstressed syllables, nearly any vowel can reduce to a schwa, making it impossible to know from sound alone whether to write a, e, i, o, or u.

This is why people write "definately" (the third syllable sounds like "uh"), "seperate" (the middle vowel sounds like "uh"), and "arguement" (the e drops out in speech). The fix is to learn related forms where the vowel is stressed: finite → definitely; separation → separate; argument (argue loses its e).

Pattern 4: Words That Change When You Add Suffixes

English suffix rules are inconsistent. Sometimes the base word changes, sometimes it doesn't. The most common source of confusion:

How to Actually Improve Your Spelling

Turn the pattern into a repeatable check:

• →Test after a gap: Look at a correct form, hide it, write it, and then compare the result with the linked entry.
• →Use the cue, not a guess: Say the memory cue while you write, then keep a short personal list of the patterns that caught you.
• →Learn etymology: Knowing that "necessary" comes from Latin necesse (unavoidable) clarifies why there's one c and two s's.
• →Use PlainSpell: Search any word at PlainSpell English to see its etymology, definition, and pronunciation.

Words People Always Have to Look Up

Even proficient writers return to dictionaries repeatedly for the same small set of words. These tend to be words where the common misspelling "sounds right" because the incorrect version matches how the word is pronounced in relaxed speech. Definitely is a prime example: the third syllable is unstressed and reduced to "uh," so "definately" or "definitly" are phonetic guesses. The fix is to recall the related word "finite" (definite = de + finite), making the -ite visible.

Privilege is another permanent fixture on misspelling lists. The most common error is "privelege," swapping the positions of i and e in the second syllable. Breaking it into morphological components helps: Latin privus (private) + lex/leg- (law) gives priv-i-lege. Three syllables, three vowels in order: i, i, e.

Liaison catches people because of the double-vowel sequence in the middle: li-ai-son. There are two separate vowels next to each other (the "a" and the "i" in "ai" are both pronounced, or at least both present in the spelling), and writers frequently write only one. The word comes directly from French, where liaison means connection, and the spelling is unchanged from French.

Mnemonics That Actually Stick

A good mnemonic ties the spelling to a meaning or a visual pattern, not just an arbitrary sound. The best ones for common misspelled words:

Separate: There's "a rat" in sep-a-rat-e. Once you see the rat, you can't unsee it, and the "a" in the middle becomes automatic.

Necessary: One Collar, two Socks (1 C, 2 S's). Or think of a shirt that has one collar and two socks drawn on it. The visual locks in the pattern.

Cemetery: Three E's, like three gravestones: cem-E-t-E-r-y. Or "E, E, E", the same vowel three times.

Restaurant: It's a REST + AURANT. The "rest" at the start is a real word you know. After "rest" comes "aurant" (from Latin aurum, gold, suggesting the gilded quality of fine dining). Once you see "rest" as a unit, the rest of the spelling is just the ending.

For a broader set of generated spelling variants, visit PlainSpell's most-misspelled rankings. For the underlying reasons why English spelling is inconsistent, see our guide on why English spelling is hard.

Cross-Language Spelling Challenges

Bilingual speakers often have a specific advantage and disadvantage: they may correctly identify Latin roots shared between English and their native language, but may also import spelling patterns that differ. For example, Spanish speakers may write "recibir" patterns into English, producing "recieve" for "receive."

See our guide to English-Spanish false friends for a deeper look at cross-language spelling interference. You can also browse the full confusables list for commonly confused English word pairs.

Frequently Asked Questions