a few months "back"

But perhaps her most recent contribution came a few months back.
What does back mean in the above sentence?

It's the same as "ago."

Quote:

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Originally Posted by sitifan

But perhaps her most recent contribution came a few months back.
What does back mean in the above sentence?

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If you consider that "ago" means "back[wards] in time" then it may make more sense.

I finished university a few years back.
He wrote that book a good twenty years back.
A few months back, I was very unhappy. Now I'm fine.