Transportation in business (3)
I believe the answer is:
bus
'transportation in business' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
This is the entire clue.
Can you help me to learn more?
(Other definitions for bus that I've seen before include "Public transport vehicle" , "Use transport" , "Means of public transport" , "Something caught" , "Road vehicle able to carry many passengers" .)