No, passion fruit is not a citrus fruit.

Mangoes are not a citrus fruit.

No they are not.

Mango is not a citrus fruit as it doesn't contains vitamin c.

No, figs aren't a citrus fruit.

citrus: any ructaceous tree or shrub of the genus "citrus", which includes the citron, lemon, lime, orange,grapefuit...

citrus fruit: 1) a fruit of any tree or shrub of the genus "citrus" as of the lemon or orange tree...

2) such fruit collectively.

so citrus is not a fruit but a kind of fruit.

Citrus IS a subtropical and tropical fruit.