• 貴重きちょう — valuable / precious
• 貴族きぞく — aristocrat / noble
• 高貴こうき — noble / dignified
• 貴方あなた — you (formal)
• 貴社きしゃ — your company (honorific)
• 貴校きこう — your school (honorific)
• 貴金属ききんぞく — precious metal
• 貴様きさま — you (rude / archaic)

貴 combines the wealth-associated shell radical 貝 with a phonetic/top element, giving the sense of “high price → high status.” It broadened from material value to social dignity and respect.

貴重きちょうな 時間じかんを ありがとうございます。
Thank you for your valuable time.

彼かれは 貴族きぞくの 出身しゅっしんです。
He is from a noble family.