text: HM intj. expressing thought\nMM intj. expressing satisfaction\nSH intj. used to urge silence \n\nThree-letter words:\nBRR intj. used to indicate coldness\nCWM Glacial feature - a circular basin with steep walls\nHMM intj. expressing thought\nNTH pert. to item number n\nPHT intj. used as an expression of mild anger or annoyance\nSHH intj. used to urge silence\nTSK to utter a scolding exclamation \n\nFour-letter words:\nPSST intj. used to attract someone's attention \n\nFive-letter words:\nCRWTH Gaelic musical instrument