lull vs calm

lull and calm both are nouns.

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

As verbs, lull and calm are synonyms defined as:

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

As verbs, calm is a hypernym of lull; that is, calm is a word with a broader meaning than lull:

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

lull (noun)	calm (noun)
a period of calm weather	steadiness of mind under stress
a pause during which things are calm or activities are diminished	wind moving at less than 1 knot; 0 on the Beaufort scale

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

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