- a rare appearance.
- a rare skill.
- a rare word.
- an uncommon sense of humor.
- lightheaded from the rarefied mountain air.
- rare books.
- rare gasses.
- rare herbs.
- rare patches of green in the desert.
- rare roast beef.
- she was kind to an uncommon degree.
- total eclipses are rare events.
- what is so rare as a day in June.