Common; customary (5)
I believe the answer is:
usual
I believe this is a double definition.
'common' is the first definition.
(associated in meaning)
'customary' is the second definition.
(similar in meaning)
(Other definitions for usual that I've seen before include "Expected" , "Accustomed" , "In accordance with regular practice" , "familiar" , "Customary - customary drink" .)