• 諸国しょこく — various countries
• 諸問題しょもんだい — various problems
• 諸君しょくん — everyone (formal address)
• 諸事情しょじじょう — various circumstances
• 諸説しょせつ — various theories
• 諸島しょとう — archipelago

諸 combines 言 (speech/words) with 者 (person), giving the sense of “many people’s voices or matters.” It evolved to mean “various” or “several,” and appears widely in formal or academic compounds.