천고마비天高馬肥 autumn 천국天國 heaven 천사天使 angel 천장天障 ceiling 천재天才 genius 천재적天才的 genius 천재적天才的 talented; gifted 천주교天主敎 Catholicism 청천벽력靑天霹靂 bolt from the blue 총천연색總天然色 all natural color 후천성後天性 being acquired 후천적後天的 being acquired 후천적後天的 acquired 감천感天 divine reward 귀천歸天 death 기상천외奇想天外 bizarreness; amazement; extraordinariness 낙천적樂天的 being optimistic 낙천적樂天的 optimistic 낙천주의樂天主義 optimism 노천露天 open air; outdoor 노천극장露天劇場 open-air theater 대명천지大明天地 being in broad daylight 마천루摩天樓 skyscraper 만천하滿天下 whole world 별천지別天地 another world 선천先天 innateness; inbornness 선천성先天性 being innate; being inborn 선천적先天的 being innate; being inborn 선천적先天的 innate; inborn 승천昇天 ascension 악천후惡天候 bad weather; nasty weather 전천후全天候 being all-season 중천中天 the center of the sky 천공天空 sky 천기天氣 (no equivalent expression) 천기天機 secret of heaven 천당天堂 heaven 천동설天動說 geocentricism 천륜天倫 moral laws in family relationships 천리天理 law of nature 천막天幕 tent 천명天命 life span 천문天文 astronomy 천문대天文臺 astronomical observatory 천문학天文學 astronomy 천문학자天文學者 astronomer 천방지축天方地軸 flighty behavior 천벌天罰 divine punishment; retribution 천부天父 God the Father 천부天賦 innateness; natural ability 천부인天符印 cheonbu-in 천부적天賦的 being innate; being inherent 천부적天賦的 innate; inherent 천상天上 celestial; heaven 천상계天上界 celestial; heaven 천생天生 something designed by nature 천생연분天生緣分 soulmate 천성天性 personality 천수답天水畓 rainfed field 천애天涯 faraway place 천양지차天壤之差 a world of difference 천연天然 naturalness 천연기념물天然紀念物 natural monument 천연두天然痘 smallpox 천연색天然色 natural color 천연자원天然資源 natural resources 천재天災 natural disaster 천재성天才性 genius 천재지변天災地變 natural disaster 천적天敵 natural enemy 천정부지天井不知 being skyrocketing; being soaring 천지天地 world 천지개벽天地開闢 creation of the world 천지조화天地造化 work of nature 천직天職 vocation; calling 천진天眞 genuineness 천체天體 celestial body 천하天下 world 천하무적天下無敵 invincibility 천하장사天下壯士 strong person 천하태평天下泰平 peace in the world 천행天幸 godsend 천형天刑 divine punishment; retribution 천혜天惠 gift of nature 개천절開天節 Gaecheonjeol; Foundation Day of Korea 용비어천가龍飛御天歌 Yongbieocheonga 천문학적天文學的 astronomical 천일염天日鹽 sea salt 천지인天地人 cheonjiin