the usual and generally accepted behaviour among most people

habitual action

a person's usual or normal practice, especially one that cannot easily be given up

tendency, practice

something done regularly; regular and frequent repetition or exercise to improve ability

routine, usual procedure

to do (something) repeatedly or regularly in order to become skilful; to make a habit of doing (something)

to do routine, usual procedure

(the passing on from generation to generation of) opinions, beliefs, customs etc

established practice

the way of using something; amount of use; (an instance of) the way of using a language (especially not governed by grammatical rules)

habit, custom