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Browse Rules: 6,148 matches

These are some of the errors that LanguageTool can detect. Visit the LanguageTool homepage to use it online.

Description Example Category
Collocation: Opposite from/to Their house is opposite from ours. Collocations
opinion/... pole (poll) Is it possible to add an opinion pole to my Myspace page? Commonly Confused Words
opining vs. opening He is opining the windows. Commonly Confused Words
operation (operating) system The Windows operation system was invented by Bill Gates. Grammar
capitalization of 'Opera' (browser) I'm using opera 61. Proper Nouns
capitalization of 'Opera' (browser) The opera browser is better than Internet Explorer. Proper Nouns
Open Office (OpenOffice) The open office document contains all changes you have requested. Proper Nouns
missing hyphen in 'open plan' In the 1960s, open plan offices were introduced, though not without some controversy. Grammar
missing hyphen in 'open heart' Open heart surgery is an operation to repair a fault or damage in the heart. Grammar
open at (to) page 6 Open your books at page 6. Collocations
LanguageTool 6.8-SNAPSHOT (2025-11-17 22:33:07 +0100)