To share or contribute in buying (a part of s.t. that s.o. has already bought [N-, pa-]); to go in together to buy s.t. [0].
Share in the cost of this tuna by buying half of it.
Let me pay for three gantas of your rice.
Who shared in buying your cassava?
I'm going to contribute in buying some of his mangoes because he was able to buy a whole sack.
Let him share in buying some of the ripe bananas you bought.
Let's go in together and buy a kilo of that beef.