聊天室

• 耳(ear)RADICAL
• 卯(hour of the Cat (Vietnamese zodiac); latch; bolt)PHONETIC

Idle talk is when ears listen to people speaking back and forth like a pivot pin fitting together.

• 大(adult; large (pictographic))RADICAL
• 一(one; top)ASSOCIATIVE

The sky is the vast, boundless expanse that lies above human beings.

• 宀(roof)RADICAL
• 至(arrive at place; reach destination)PHONO-SEMANTIC

A room is a place with a roof overhead where people come and stay.