“Untill” or “until”: which is correct?

Why people get it wrong

People often make this error due to confusion arising from similar words like till and until, which may lead them to erroneously combine elements of both.

Examples with until

• Please wait until the timer goes off.
• We won’t start the meeting until everyone arrives.
• You can stay here until the rain stops.
• He worked on the project until late at night.