How do you say cuba in Chinese?
— 古巴 (Gǔbā); 古巴; 古巴

Generic synonyms for cuba in Chinese
country鄉下, 乡下 (xiāngxià)
island島, 岛 (dǎo), 島嶼, 岛屿 (dǎoyǔ)
land土地 (tǔdì)