健

healthy / to invigorate / to strengthen / to be good at / to be strong in

健 = 亻 + 建 : Joan of Arc (ji) and Rosa Luxemburg (亻) want to get fit and healthy (健), so together with Blob the Builder (建) they set up a gym in the anthill's bathroom (an4).

健 character breakdown

健
- 亻
  - 丨
  - 丿
- 建
  - 廴
    - ㇏
  - 聿
    - 二
      - 一
    - 肀

亻

rén = r + (e)n2

"person" radical in Chinese characters (Kangxi radical 9)

亻 = 丿 + 丨 : Mnemonic symbol: Rosa Luxemburg. She's quite radical, and her name starts with "r", just like "ren2". Also, 亻appears at the left-hand side of characters, and Rosa is a leftist as well.

Robinson Crusoe (r) and Rosa Luxemburg (亻) are having their favorite snacks in the encampment's kitchen: Rosa is eating a banana (丿) and Robinson is eating a dinosaur bone (丨).

建

jiàn = ji + an4

to establish / to found / to set up / to build / to construct

建 = 廴 + 聿 : Mnemonic symbol: Blob the Builder.

Blob the Builder (建) and Joan of Arc (ji) want to construct (建) a Go (廴) field in the anthill's bathroom (an4), so they paint the field on the floor using decorator's brushes (聿).