precedence
Concise Oxford English Dictionary © 2008 Oxford University Press:
precedence /ˈprɛsɪd(ə)ns, ˈpriː-, prɪˈsiːd(ə)ns/
▶noun the condition of preceding others in importance, order, or rank.
■ an acknowledged or legally determined right to such precedence.
'precedence' also found in these Oxford entries:

