rig vs hackney carriage

rig and hackney carriage both are nouns.

Word	Noun	Adjective	Verb	Adverb
rig	Yes	No	Yes	No
hackney carriage	Yes	No	No	No

As nouns, hackney carriage is a hyponym of rig; that is, hackney carriage is a word with a more specific, narrower meaning than rig:

rig (noun)	hackney carriage (noun)
the act of swindling by some fraudulent scheme	a carriage for hire
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

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