• 猛暑もうしょ — extreme heat
• 残暑ざんしょ — lingering summer heat
• 避暑ひしょ — summer retreat (to escape heat)
• 暑中しょちゅう — midsummer

暑 combines the 日 (sun) radical with 者 (person), hinting at someone exposed to intense sunlight. The character expresses the oppressive heat of summer and is commonly used in weather-related vocabulary.