TSUMUGU · TOCFL 1 · 字
房
ㄈㄤˊ · fáng
noun — a room; a house
字源 FORM — what the parts do
Tfāng → fáng — only the tone bends
A single-leaf door (戶) with 方 for sound, tone bent to fáng. 說文 places it: the rooms beside the main hall, each behind its own door. Now any room, and the building around it: 房間、廚房、房子.
故事 STORY — a scene to remember it by
正廳兩側各一扇門（戶），門後各一間房。
One door (戶) on each side of the main hall; behind each door, a room.
字源記憶法
意 · Meanings
(本義)廂房— the side rooms off the hall
→房間— a room常用
→房子、房東— the house; the landlord
(本義) original meaning · → ⇒ each arrow = one more step of extension