Cocoa palm and Palm tree

Cocoa palm noun - Tall palm tree bearing coconuts as fruits; widely planted throughout the tropics.

Palm tree and cocoa palm are semantically related. In some cases you can use "Palm tree" instead a noun phrase "Cocoa palm".

Palm tree noun - Any plant of the family Palmae having an unbranched trunk crowned by large pinnate or palmate leaves.

Cocoa palm and palm tree are semantically related. Sometimes you can replace phrase "Cocoa palm" with "Palm tree", this phrases are similar.