內

nèi = n + ei4

inside / inner / internal / within / interior

内 = ⺆ + 人 : Mnemonic symbol: A CT scanner to see inside of someone.

内 = ⺆ + 人 : Napoleon just can't find his stapler and suspects that Neanderthal Man has eaten it. Not thinking twice he orders Neanderthal Man to enter his CT scanner in the Eiffel Tower's bathroom, finding his stapler in Neanderthal Man's stomach.

內 character breakdown

內
- 入
  - 丿
  - ㇏
- 冂
  - 丨
  - ㇆
    - 一
    - 亅

入

rù = ru + Ø4

to enter / to go into / to join / to become a member of / to confirm or agree with / abbr. for 入聲|入声[ru4 sheng1]

入 = 丿 + ㇏ : Mnemonic symbol: a big enter button.

入 = 丿 + ㇏ : Some aliens have disguised themselves as banana and float by the space station's bathroom. Rachel Rhinoceros sees them and because she loves bananas, she presses a big enter button with her finger to let them enter.

冂

jio̅ng = ju + (e)ng1

radical in Chinese characters (Kangxi radical 13), occurring in 用[yong4], 同[tong2], 網|网[wang3] etc, referred to as 同字框[tong2 zi4 kuang4]

冂 = 丨 + ㇆ : Kind of looks like a map. Zeus found a secret map that tells the location of a golden dinosaur bone in front of the engine, so he took a plough and digged up everything. He actually found a couple of dinosaur bones, but not a golden one.