operation vs business

operation and business both are nouns.

Word	Noun	Adjective	Verb	Adverb
operation	Yes	No	No	No
business	Yes	No	No	No

operation (noun)	business (noun)
a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body	the principal activity in your life that you do to earn money
(mathematics) calculation by mathematical methods	the activity of providing goods and services involving financial and commercial and industrial aspects
activity by a military or naval force (as a maneuver or campaign)	the volume of commercial activity
a planned activity involving many people performing various actions	incidental activity performed by an actor for dramatic effect
a process or series of acts especially of a practical or mechanical nature involved in a particular form of work	an immediate objective
a business especially one run on a large scale	a rightful concern or responsibility
the activity of operating something (a machine or business etc.)	a commercial or industrial enterprise and the people who constitute it
(psychology) the performance of some composite cognitive activity; an operation that affects mental contents	customers collectively
(computer science) data processing in which the result is completely specified by a rule (especially the processing that results from a single instruction)	business concerns collectively
process or manner of functioning or operating
the state of being in effect or being operative