免费 (miǎnfèi) · free (of charge)

免 miǎn · to spare

What 免 is made of

• ⺈ — top shape
• 口kǒu — mouth
  • 冂 — frame
    • 丨 — vertical stroke
  • 一 — horizontal stroke
• 儿ér — child
  • 丿 — falling stroke
  • 乚 — hook stroke

费 fèi · fee

What 费 is made of

• 弗fú — not
  • 弓gōng — bow
  • 丨 — vertical stroke
  • 丨 — vertical stroke
• 贝bèi — sea shell
  • 冂 — frame
    • 丨 — vertical stroke
  • 人rén — person

Origin hint: 贝 gives the meaning, 弗 gives the sound. (from the Make Me a Hanzi dataset; treat as a memory aid where history is uncertain)