laager vs cantonment

laager and cantonment both are nouns.

Word	Noun	Adjective	Verb	Adverb
laager	Yes	No	No	No
cantonment	Yes	No	No	No

As nouns, cantonment is a hypernym of laager; that is, cantonment is a word with a broader meaning than laager:

laager: a camp defended by a circular formation of wagons
cantonment: temporary living quarters specially built by the army for soldiers

Other hypernyms of laager include bivouac, camp, encampment.

laager (noun)	cantonment (noun)
a camp defended by a circular formation of wagons	temporary living quarters specially built by the army for soldiers