sell vs double cross

sell and double cross both are nouns.

Word	Noun	Adjective	Verb	Adverb
sell	Yes	No	Yes	No
double cross	Yes	No	Yes	No

As verbs, double cross is a hyponym of sell; that is, double cross is a word with a more specific, narrower meaning than sell:

sell (noun)	double cross (noun)
the activity of persuading someone to buy	an act of betrayal

sell (verb)	double cross (verb)
persuade somebody to accept something	betray by double-dealing
exchange or deliver for money or its equivalent
do business; offer for sale as for one's livelihood
give up for a price or reward
deliver to an enemy by treachery
be sold at a certain price or in a certain way
be responsible for the sale of
be approved of or gain acceptance