Spelling & Language Guides
In-depth resources on English spelling, confusable words, homophones, and cross-language pitfalls. According to the PlainSpell editorial team, the patterns covered below recur across the 6,918,744 words and 3,375,992 confusable pairs catalogued from the open Wiktionary corpus as of June 2026, spanning English, Spanish, French, German, and Portuguese.
Every guide is written by our editorial desk and cites its sources and method on the methodology page.
100 Most Misspelled English Words
The words Americans misspell most often, ranked with correct spellings, common mistakes, and memory tricks.
Homophones That Confuse Everyone
Words that sound identical but mean completely different things, the most common homophone pairs in English.
English-Spanish False Friends
Words that look similar in English and Spanish but have different meanings, a guide for bilingual speakers.
Confusable Words That Change Meaning
Affect vs effect, principal vs principle, and dozens more pairs where one wrong letter changes everything.
Why English Spelling Is So Hard
The historical reasons English spelling is inconsistent, from Norman French influence to the Great Vowel Shift.
Spelling Rules That Actually Work
10 English spelling patterns that are genuinely reliable, covering 80%+ of common words with few exceptions.
Silent Letters in English
Why English has more silent letters than any other European language, and the position patterns that make them predictable.
Its vs It's, Your vs You're: The Apostrophe Rule
Its or it's, your or you're, whose or who's, one rule settles every apostrophe confusion: possessive pronouns never take an apostrophe.
How do we choose and write these guides?
Our guides are based on publicly available data from authoritative government sources. All statistics, ratings, and figures cited in these guides are drawn directly from official datasets and publications, with sources clearly referenced throughout.
We aim to present complex government data in plain language that is accessible to general audiences. When methodologies differ between data sources or change over time, we note these variations inline. Our editorial process includes regular reviews to ensure accuracy and timeliness of the information presented.