business vs doldrums

business and doldrums both are nouns.

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

business (noun)	doldrums (noun)
the principal activity in your life that you do to earn money	a belt of calms and light winds between the northern and southern trade winds of the Atlantic and Pacific
the activity of providing goods and services involving financial and commercial and industrial aspects	a state of inactivity (in business or art etc)
the volume of commercial activity
incidental activity performed by an actor for dramatic effect
an immediate objective
a rightful concern or responsibility
a commercial or industrial enterprise and the people who constitute it
customers collectively
business concerns collectively