operations vs transaction

operations and transaction both are nouns.

Word	Noun	Adjective	Verb	Adverb
operations	Yes	No	No	No
transaction	Yes	No	No	No

As nouns, transaction is a hypernym of operations; that is, transaction is a word with a broader meaning than operations:

operations: financial transactions at a brokerage; having to do with the execution of trades and keeping customer records
transaction: the act of transacting within or between groups (as carrying on commercial activities)

Other hypernyms of operations include dealing, dealings.

operations (noun)	transaction (noun)
financial transactions at a brokerage; having to do with the execution of trades and keeping customer records	the act of transacting within or between groups (as carrying on commercial activities)