Compounds of 十五

• 十五
  (n) 15
  fifteen
  (P)
• 十五日
  (n) the 15h day of the month
• 十五夜
  (n) night of the full moon
  the night of the 15th day of the 8th lunar month
• 十五年戦争
  (n) Fifteen Years' War (starting with the Manchurian Incident in 1931 and ending with the Japanese surrender in 1945)
• 人の噂も七十五日
  (exp) (id) Wonder lasts but nine days
• 人の噂も七十五日
  (io) (exp) gossip lasts just one season (lit: 75 days)