Do you know these words?

• はやだし

  serving a meal at an early time

• けつえきけんさ

  blood test

• ひとちがい

  to mistake (one person from another) ; to take one for somebody else ; to mistake one for someone else

• ごうこん

  matchmaking party

• くだる（やまを〜/さかを〜）

  to go down (a mountain/slope)