also: てぐっき
noun
Taegukgi; South Korean national flag
Refers specifically to the flag of South Korea, featuring the taegeuk symbol and four trigrams. The term is used in Japanese as a proper noun.
ソウルの街には太極旗がたくさん掲げられていた。
Many Taegukgi were displayed in the streets of Seoul.
太極旗の中央には赤と青の太極模様がある。
In the center of the Taegukgi is a red and blue taegeuk pattern.
From Korean 태극기 (taegeukgi), meaning 'taegeuk flag'. The Japanese reading たいきょくき is the on'yomi of the kanji 太極旗.