reign
US /reɪn/
UK /reɪn/

1.
the period during which a sovereign rules
:
•
Queen Victoria's reign lasted for 63 years.
•
During his reign, the country experienced great prosperity.
2.
the position or power of being a monarch or ruler
:
•
The king ascended to the reign after his father's death.
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The queen's reign was marked by peace and stability.
1.
2.
be the dominant controlling power or influence
:
•
Chaos seemed to reign in the streets.
•
Silence reigned in the empty hall.