• 王様おうさま — king
• 国王こくおう — monarch
• 女王じょおう — queen
• 王子おうじ — prince
• 王国おうこく — kingdom
• 王者おうじゃ — champion; ruler

“王” is used for kings and rulers, and it also appears in words like 王者 (champion). It often signals prestige, leadership, or the top rank in a field.