Learning a foreign word usually means brute-force repetition. The Keyword Method gives you a shortcut: find an English word that sounds like the foreign word (the “keyword”), then build one vivid image linking that sound-alike to the actual meaning.
Example: the French word “chat” (cat) sounds like “shot”. Picture a cat firing a slingshot. Say “chat” and the shot-image fires, which points straight to cat. It feels silly, silly is the point, silly is what sticks.
This method is fastest for concrete nouns and gets harder for abstract words, but even there, break the foreign word into syllable-chunks and find a sound-alike for each chunk, then build a short image-story linking the chunks to the meaning, the same chaining principle from Day 3.