TSUMUGU · TOCFL B2 (est.) · 字
廓
廓 ＝ 广 ＋ 郭
ㄎㄨㄛˋ · kuò
noun/adj — outline, contour; wide, empty, vast
字源 FORM — what the parts do
广義a roofed building, a shelter
郭聲guō — gives the sound
{g,k}ITguō → kuò — g- to k-, the rest shifts too
A roofed shelter (广) with 郭 guō for the sound, g- shifting to k- and the tone falling. 郭 is the outer city wall, the ring that marks a city's edge — so 廓 is the outline, the contour, and the wide empty space a wall encloses: 輪廓、廓清.
故事 STORY — a scene to remember it by
沿著城外那圈牆（郭）走一遍，整座城的外形就描了出來。
Walk the full ring of the outer wall (郭), and the whole shape of the city is traced.
字源記憶法
意 · Meanings
(本義)廓大、空廓— wide, vast, open
→輪廓、外廓— outline, contour常用
→廓清— to clear away, sweep clean
(本義) original meaning · → ⇒ each arrow = one more step of extension
關 · Related
郭guōthe sound donor — 郭 is the outer city wall; 廓 roofs it with 廣＝ ＋ 黃guǎngthe lookalike — 廣 fills with 黃; 廓 fills it with