Do you know these words?

• いつつ

  five (used when counting things in general)

• いただきます

  Itadakimasu. (polite expression used before commencing a meal.)

• いればを　する

  to put in one's false teeth (dentures)

• めもする

  to take down notes ; to write a memo ; to jot

• いんないかんせん

  hospital acquired infection