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Browse Rules: 6,150 matches

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

Description Example Category
on the lamb (lam) The criminals spent most of the summer on the lamb. Possible Typo
on the contraire (au contraire) On the contraire, you've been following me home! Possible Typo
on page seo (on-page seo) He did some on page optimizations to boost his website in Google. Compounding
on off (on-off) Tom and Mary are having an on off relationship. Compounding
on going (ongoing) It is a widely held belief that continues to be a factor in their on going support of the war. Possible Typo
on going (ongoing) There is an on going investigation. Possible Typo
on boarding (onboarding) The on boarding UI. Grammar
on boarding (onboarding) The car comes with an on board computer. Grammar
on boarding (onboarding) My new website is on line. Grammar
on behave (on behalf) They act on behave of a user. Commonly Confused Words
LanguageTool 6.8-SNAPSHOT (2026-05-04 22:33:08 +0200)