The manner in which people typically behave or things typically happen(noun)
WordNet. Princeton University. 2010.
Use "the ways of the world" in a sentence
"Some have maintained that we should conform to the ways of the world somewhat — at least, enough to show that we can enjoy the world and religion too; and that we make religion appear repulsive to unconverted souls by turning our backs upon what they call their innocent amusements."