All 6 Uses

rigorous
in
Fast Food Nation
(Edited)

He greatly admired Henry Ford and introduced an assembly line and a rigorous division of labor at the Disney Studio, which was soon depicted as a "fun factory."
p. 36.4

rigorous = thorough and careful
The workplace at FutureCall is even more rigorously controlled than the one at McDonald's.
p. 81.9

rigorously = thoroughly and carefully
The McDonald's Corporation led the way in the standardization of America's retail environments, rigorously controlling the appearance of its restaurants inside and out.
p. 97.8
Ken has learned how to handle the rigors of working in a packing plant and is trying to help others do the same.
p. 188.1 *

rigors = difficulties
The meatpacking industry is now willing to perform the sort of rigorous testing for fast food chains that it refuses to do for the general public.
p. 221.4 *

rigorous = thorough and careful
From the airline industry to the publishing business, from the railroads to telecommunications, American corporations have worked hard to avoid the rigors of the market by eliminating and absorbing their rivals.
p. 260.7

rigors = difficulties

Definitions:

(1) (rigorous as in: we follow a rigorous procedure)
thorough and careful procedures
(2) (rigorous as in: a rigorous math class)
difficult and demanding
(3) (rigorous as in: rigorous enforcement)
strict when enforcing rules
(4) (meaning too rare to warrant focus)