As I listened to the English radio, the DJ said "keep on challenging yourself". But I have known that we can also say that "keep challenging yourself". What is the role of "on" in the former expression?

Thank you in advance.

  • Since it's a DJ -- this may be related to "Keep on keepin' on." Aug 21, 2015 at 20:55

1 Answer 1


The two sentances have the same meaning. "On" in the first sentence is just a preposition.Essentially the first sentence is teling you to continue to be engged in challenging yourself, while the sencond sentence is telling you to continue to challenge yourself.

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