20 Old HSK word(s): ☊参观 ** A ☊主观 ** B ☊观察 ** B ☊观点 ** B ☊乐观 ** B ☊观众 ** B ☊美观 ** C ☊观测 ** C ☊观看 ** C ☊观念 ** C ☊客观 ** C ☊悲观 ** C ☊观 ** D ☊观光 ** D ☊观赏 ** D ☊外观 ** D ☊可观 ** D ☊壮观 ** D ☊世界观 ** D ☊微观 ** D
不雅观* * 道德观* * 改观* * 宏观* * 价值观* * 旁观* * 奇观* * 人生观* * 围观* * 谢绝参观* * 袖手旁观* * 雅观* * 直观* *

Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.

直 straight, erect, vertical
观 see, observe, view / appearance

Hsk Characters: 观 *
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual
观 89C2 + 觀 + + see, observe, view / appearance 见 见 See 见 (WIEDER) 【◎Fix:◎guan1;◎guan4】 +

Korean:

觀 + 观 볼 관 (보다: to see)
16 NHSK word(s): 参观* 4 can1 guan1to look around/ to inspect/ visit and observe 观众* 4 guan1 zhong4spectators/ audience/ visitors (to an exhibition etc) 观察* 5 guan1 cha2to observe/ to watch/ to survey/ to examine/ observation/ view/ perspective/ CL:個|个[ge4] 观点* 5 guan1 dian3point of view/ viewpoint/ standpoint/ CL:個|个[ge4] 客观* 5 ke4 guan1objective/ impartial 观念* 5 guan1 nian4notion/ thought/ concept/ sense/ views/ ideology/ general impressions 悲观* 5 bei1 guan1pessimistic 乐观* 5 le4 guan1optimistic/ hopeful 主观* 5 zhu3 guan1subjective 宏观* 6 hong2 guan1macro-/ macroscopic/ holistic 壮观* 6 zhuang4 guan1spectacular/ magnificent sight 可观* 6 ke3 guan1considerable 观光* 6 guan1 guang1to tour/ sightseeing/ tourism 微观* 6 wei1 guan1micro-/ sub-atomic 美观* 6 mei3 guan1pleasing to the eye/ beautiful/ artistic 世界观* 6 shi4 jie4 guan1worldview/ world outlook/ Weltanschauung
KOREAN6000 word(s):
9 KOREAN 2500 New HSK words):
悲观 + bēiguān 비관하다. 비관적이다. bigwanhada. bigwanjeog-ida.
观察 + guānchá (사물•현상을) 관찰하다. 살피다. (samul•hyeonsang-eul) gwanchalhada. salpida.
观点 + guāndiǎn 관점. 견지(見地). 견해. gwanjeom. gyeonji(gyeonji). gyeonhae.
观念 + guānniàn 관념. 생각. gwannyeom. saeng-gag.
客观 + kèguān 객관적이다. gaeggwanjeog-ida.
乐观 + lèguān 낙관적이다. 희망차다. naggwanjeog-ida. huimangchada.
主观 + zhǔguān 주관. jugwan.
参观 + cānguān (전람회•공장•명승 고적 등을) 참관하다. 견학하다. 시찰하다. (jeonlamhoe•gongjang•myeongseung gojeog deung-eul) chamgwanhada. gyeonhaghada. sichalhada.
观众 + guānzhòng 관중. 구경꾼. 시청자. gwanjung. gugyeongkkun. sicheongja.
1 KOREAN Sentence(s):
这城市里有什么景点儿可以参观？ + 시내에 볼 게 뭐가 있어요? shinae-ye bol ke mwo-ga isseoyo?