semitrailer vs rig

semitrailer and rig both are nouns.

Word	Noun	Adjective	Verb	Adverb
semitrailer	Yes	No	No	No
rig	Yes	No	Yes	No

semitrailer (noun)	rig (noun)
a trailer having wheels only in the rear; the front is supported by the towing vehicle	the act of swindling by some fraudulent scheme
	gear (including necessary machinery) for a particular enterprise
	formation of masts, spars, sails, etc., on a vessel
	a set of clothing (with accessories)
	a vehicle with wheels drawn by one or more horses
	a truck consisting of a tractor and trailer together
	gear used in fishing

semitrailer (verb)	rig (verb)
	equip with sails or masts
	connect or secure to
	manipulate in a fraudulent manner
	arrange the outcome of by means of deceit