underbid vs tender

underbid is not a noun while tender is a noun.

Word	Noun	Adjective	Verb	Adverb
underbid	No	No	Yes	No
tender	Yes	Yes	Yes	No

As verbs, tender is a hypernym of underbid; that is, tender is a word with a broader meaning than underbid:

Other hypernyms of underbid include bid, offer.

As verbs, tender is a hypernym of underbid; that is, tender is a word with a broader meaning than underbid:

Other hypernyms of underbid include bid, offer.

underbid (noun)	tender (noun)
	ship that usually provides supplies to other ships
	a boat for communication between ship and shore
	car attached to a locomotive to carry fuel and water
	a formal proposal to buy at a specified price
	someone who waits on or tends to or attends to the needs of another
	something that can be used as an official medium of payment

underbid (adjective)	tender (adjective)
	easy to cut or chew
	physically untoughened
	given to sympathy or gentleness or sentimentality
	(of plants) not hardy; easily killed by adverse growing condition
	having or displaying warmth or affection
	hurting
	(used of boats) inclined to heel over easily under sail
	young and immature

underbid (verb)	tender (verb)
bid too low	make tender or more tender as by marinating, pounding, or applying a tenderizer
bid lower than a competing bidder	make a tender of; in legal settlements
bid (a hand of cards) at less than the strength of the hand warrants	offer or present for acceptance
	propose a payment