我的世界

• 手(hand)RADICAL
• 戈(weapon; spear)PHONO-SEMANTIC

I am a person holding a weapon in my hand to protect myself.

• 白(white; bright)RADICAL
• 勺(spoon)PHONETIC

A spoon catching sunlight shines brightly and clearly — the character means "of" or shows clarity and definiteness.

• 田(field; land)RADICAL
• 介(in the middle; separate)PHONETIC

A boundary is the dividing line between separate fields.