bidding vs summons

bidding and summons both are nouns.

Word	Noun	Adjective	Verb	Adverb
bidding	Yes	No	No	No
summons	Yes	No	Yes	No

As nouns, bidding and summons are synonyms defined as:

bidding (noun)	summons (noun)
a request to be present	a writ issued by authority of law; usually compels the defendant's attendance in a civil suit; failure to appear results in a default judgment against the defendant
(bridge) the number of tricks a bridge player is willing to contract to make	a request to be present
an authoritative direction or instruction to do something	an order to appear in person at a given place and time

bidding (verb)	summons (verb)
	call in an official matter, such as to attend court