Meaning

1. to act; to take action
2. to negotiate; to bargain; to haggle
3. to trade in; to deal; to sell
4. to trade
5. to tip as; to take into consideration as being
6. to discuss; to deal with; to write or speak about
7. to be about; to deal with
8. to be, to be a case of, to be a matter of, to concern (often used to introduce the subject before giving it a name, or to indicate some uncertainty regarding exact amounts) (literally, “it itself has to do with ...”)