Christmas box vs backsheesh

Christmas box and backsheesh both are nouns.

Word	Noun	Adjective	Verb	Adverb
Christmas box	Yes	No	No	No
backsheesh	Yes	No	No	No

As nouns, backsheesh is a hypernym of Christmas box; that is, backsheesh is a word with a broader meaning than Christmas box:

Christmas box: a present given at Christmas for services during the year
backsheesh: a relatively small amount of money given for services rendered (as by a waiter)

Other hypernyms of Christmas box include baksheesh, bakshis, bakshish, gratuity, pourboire, tip.

Christmas box (noun)	backsheesh (noun)
a present given at Christmas for services during the year	a relatively small amount of money given for services rendered (as by a waiter)