from is one of the most commonly used prepositions in English with multiple meanings:
1. Indicating the starting point: "I'm from Beijing"
2. Showing origin: "This gift is from my mom"
3. Expressing separation: "Keep away from fire"
4. Denoting source: "Quoted from Shakespeare"
5. Representing material: "Made from recycled materials"
6. Indicating cause: "Suffering from a cold"
7. Showing difference: "Tell right from wrong"