tranquillize vs calm

tranquillize is not a noun while calm is a noun.

Word	Noun	Adjective	Verb	Adverb
tranquillize	No	No	Yes	No
calm	Yes	Yes	Yes	No

As verbs, tranquillize and calm are synonyms defined as:

tranquillize and calm: cause to be calm or quiet as by administering a sedative to

Other synonyms of tranquillize include sedate, tranquilize, tranquillise.

As verbs, tranquillize and calm are synonyms defined as:

Other synonyms of tranquillize include calm down, lull, quiet, quieten, still, tranquilize, tranquillise.

tranquillize (noun)	calm (noun)
	steadiness of mind under stress
	wind moving at less than 1 knot; 0 on the Beaufort scale

tranquillize (adjective)	calm (adjective)
	(of weather) free from storm or wind
	not agitated; without losing self-possession

tranquillize (verb)	calm (verb)
cause to be calm or quiet as by administering a sedative to	cause to be calm or quiet as by administering a sedative to
make calm or still	make steady
	make calm or still
	become quiet or calm, especially after a state of agitation