Do you know these words?

• ますたーする

  to master ; to become very good ; to become skilled at

• ながれる

  to rush ; to sloosh

• でんせんびょう

  communicable disease ; epidemic

• ぴりぴりする

  to be uptight ; to get tense

• 〜ちゅう

  -ing ; in the middle of -