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Important notice

Good news! We have updated our writing tools. Writing Tips and The Canadian Style have been combined to create a new tool called Writing Tips Plus.

Don’t forget to update your bookmarks. Within a few weeks, Writing Tips will no longer be available.

To begin your search, go to the alphabetical index below and click on the first letter of the word you are searching for.


In addition to its literal meaning, the noun or modifier killer informally indicates something very good or very bad, or something impressive or tough. In formal writing, avoid this use.

  • Software developers are searching for the "killer app"— the application that will eliminate the competition.
  • Even with 24 gears on my mountain bike, that is a killer hill!
  • This math assignment is a real killer.