sell vs lead on

sell is a noun but lead on is not a noun.

Word	Noun	Adjective	Verb	Adverb
sell	Yes	No	Yes	No
lead on	No	No	Yes	No

As verbs, lead on is a hypernym of sell; that is, lead on is a word with a broader meaning than sell:

Other hypernyms of sell include cozen, deceive, delude.

sell (noun)	lead on (noun)
the activity of persuading someone to buy

sell (verb)	lead on (verb)
persuade somebody to accept something	entice or induce especially when unwise or mistaken
exchange or deliver for money or its equivalent	be false to; be dishonest with
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