冷寒 is read as れいかん (reikan) and means cold.
れいかん
reikan
かんれい
cold
かんれいち
cold district
かんれいぜんせん
cold front
かんれいこうきあつ
cold anticyclone
かんれいしゃ
cheesecloth
かんれいうず
cold vortex
つべたい
cold (to the touch)
れいせん
cold war
れいせい
calmness
れいすい
cold water
ひややか
ひえる
to grow cold (from room temperature, e.g. in refrigerator)