Your brother is correct, and you are not. From wiki, sourced from a botanist at Purdue University: "The pineapple (Ananas comosus) is a tropical plant with edible multiple fruit consisting of coalesced berries." So it is, in fact, a berry. Which is a type of fruit, really.

Truth is, pineapples are actually a cluster of berries that grow very close together.

Some people just can't take being proved wrong.

Berries are still fruit by some definitions. But yes, pineapples are berries. They are multiple segments each with 1+ seeds all held together growing out of where a flower used to be. So I must ask, what did you google? Because nothing should have supported your argument over his.

berries are fruit.

Bananas are also berries.

Actually, you're the one who is wrong. Pineapples are berries. Therefore, they are actually the ovaries of the plant, and the seeds are the actual 'fruit'.

Pineapples are classified as berries. It's not one contiguous fruit, its a bunch of berries fused to the central stalk.

Not gonna repeat the thing a hundred other people have said. Just gonna say YDI.

Your brother is right OP pineapples are berries not fruits.