@contrex,
I said substantive difference, Contrex, not that the two were identical "parts of speech." My point was that to use them both would be redundant.
By redundant, I just mean that it's like saying the same thing twice, all over again, and also, too, that you're just repeating yourself, for a second time, all over again.
Quote:Maybe: adverb - perhaps, possibly.
OK.
Quote:Our boss was sick yesterday so he may be absent from work today
Then again, he may NOT be absent, eh?
The suggestion is the same. One of "possibility" or "contingency" rather than one of actuality or certainty.