Compounds of 熱い

• 熱い
  (adj-i) hot (thing)
  (P)
• 熱い仲
  (exp) mutual attraction
  being in love.
• 熱いコーヒー
  (n) hot coffee
• 鉄は熱いうちに打て
  (exp) strike while the iron is hot
• 鉄は熱い内に鍛えよ
  (exp) (id) Strike while the iron is hot
• 鉄は熱いうちに鍛えよ
  (exp) (obsc) strike while the iron is hot