ครองสิริราชสมบัติ(krong sì-rí-râat-chá-sŏm-bàt)

Meanings

1VerbC2

[to] reign (royal/high register)

to hold the throne and rule as a monarch; used in formal references to a king or queen

Examples

His Majesty King Bhumibol Adulyadej held the throne for the longest period in Thai history, for 70 years.