Left: tree 木, right: to collect 娄 (Rice grains 米 are by women 女 been: collected.)
Mnemonic
You need wood for this and you put the rice upstairs (= upper floor, thus protected from e.g. rats), while you yourself 女 are downstairs (= ground floor): in the multi-story building.
This radical is used with the meaning "to collect", because helpful mnemonics become possible, as for example with " to collect 搂", which is ethymological not correct.
Tip: Go to the radicals that are contained in this character and learn all the characters with this radical systematically!
Vocabulary
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充当
chōng dāng
楼梯
lóu tī
stair; staircase
楼房
lóu fáng
a building of two or more stories
高楼大厦
gāo lóu dà shà
tall buildings and large mansions; high-rise apartment building
黄鹤楼
Huáng hè lóu
Yellow crane tower in Wuhan city
赤嵌楼
Chì kǎn lóu
Chihkan Tower (formerly Fort Provintia) in Tainan, Taiwan
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