天魚[amago] land-locked variety of red-spotted masu trout (Oncorhynchus masou ishikawae)
御天気[otenki] weather
コール天[kooruten] corded velveteen
破天連[pateren] Portuguese Jesuits (in Japan in the 16th century)
天鵝絨[tengajuu] velvet

悪天[akuten] bad weather
悪天候[akutenkou] bad weather
悪天使[akutenshi] evil angels
旭日昇天[kyokujitsushouten] full of vigor and vitality (like the rising sun) (vigour)
一天[itten] the whole sky

飲干す[nomihosu] to drink up
刈り干す[karihosu] to cut and dry (in the sun)
干菓子[higashi] dried candies
乾干し[karaboshi] sun-dried fish or vegetables
干物[hoshimono] things dried in the sun (esp. clothes, dyed cloth, etc.)

干し固める[hoshikatameru] to dry until stiff
干草[hoshigusa] hay
干る[hiru] to dry
干害[kangai] drought disaster