越冬[ettou] passing the winter
夏炉冬扇[karotousen] summer fires and winter fans
旧冬[kyuutou] former winters
厳冬[gentou] severe winter
今冬[kontou] this winter

三冬[santou] three winter months
春夏秋冬[shunkashuutou] spring, summer, autumn (fall) and winter
初冬[shotou] early winter
真冬[mafuyu] midwinter
暖冬[dantou] mild winter

印篭[inroo] seal case
引き篭る[hikikomoru] to stay indoors
口篭る[kuchigomoru] to hesitate to say
篭める[komeru] to load (a gun, etc.)
手篭[tegome] rape

石燈篭[ishidourou] stone lantern
冬篭り[fuyugomori] hibernation
閉篭る[tojikomoru] to seclude oneself
篭城[roujou] siege
井篭[seiro] basket used for steaming food