Plural of "learning"

What is the plural of learning? Is it learnings?

Actually, learnings sounds terrible to native American English speakers. I never heard of it being used at all until I worked with people from India.

Learnings, informations, and the needful were all new to me, and I'm not even sure if they are correct.

Looking up the noun in the Oxford English Dictionary and in other dictionaries, I see no text referring to learnings at all, so I'm not sure if it is the correct plural of learning. I've never heard it spoken by English speakers born in America.

Here is another discussion on it: http://answers.yahoo.com/question/index?qid=20081013100405AAb3jdp

Yes, the plural of learning is learnings. It appears in established expressions like new learnings (a medical term).

I don't think it's very widely used, and I think most uses I could read are just mistakes. The term is voguish, and it sounds good, but I don't see the need for it in “Key learnings from X” when you can just say “Key lessons from X”.

If you're taking 'learning' as a gerund (the noun version of the present participle), then I don't really think that a plural of it is a coherent notion.

If you take 'learning' to be 'a thing learned or to be learned', it is a bit new to most people, and sounds like a neologism by advertisers or people who couldn't remember the word 'lesson' or 'fact'. In that case, yes, the appropriate plural would be 'learnings'.