terms, although qīng is still part of many common noun phrases. The two forms can also be encountered combined as 靑藍 and 靑綠, with 靑 being used as an intensifier. In modern scientific contexts, qīng refers to cyan and is distinguished from blue and green. Japanese The Japanese word , the same kanji character as the Chinese qīng, can refer to either blue or green depending on the situation. Modern Japanese has a word for , but it is a relatively recent usage. Ancient Japanese did not have this distinction: the word midori came into use only in the Heian period, and at that time (and for a long time thereafter) midori was still considered a shade of ao. Educational materials distinguishing green and blue came into use only after World War II; thus, even though most Japanese consider them to be green, the word ao is still used to describe certain vegetables, apples, and vegetation. Ao is also the word used to refer to the color on a traffic light that signals one to "go". However, most other objects—a green car, a green sweater, and so forth—will generally be called midori. Japanese people also sometimes use the word , based on the English word "green", for colors. The language also has several other words meaning specific shades of green and blue. Korean The native Korean word (Revised Romanization: pureu-da) may mean either blue or green, or bluish green. These adjectives are used for blue as in (pureu-n haneul, blue sky), or for green as in (pureu-n sup, green forest). 푸른 (pureu-n) is a noun-modifying form. Another word 파랗다 (para-ta) usually means blue, but sometimes it also means green, as in 파란 불 (para-n bul, green light of a traffic light). There are Sino-Korean expressions that refer to green and blue. (chorok adj./n.), (choroksaek n. or for short, noksaek n.) is used for green. Cheong , another expression borrowed from Chinese (靑), is mostly used for blue, as in 청바지/靑-- (cheong-baji, blue jeans") and Cheong Wa Dae ( or Hanja: ), the Blue House, which is the former executive office and official residence of the President of the Republic of Korea, but is also used for green as well, as in 청과물/靑果物 (cheong-gwamul, fruits and vegetables) and 청포도/靑葡萄 (cheong-podo, green grape). Tibetan In Tibetan, སྔོན་པོ། (Wylie sngon po) is the term traditionally given for the color of the sky and