"Big" - fast and riculously easy Chinese 大 dà 대 (ziua 284) Easy Chinese Writing

If anyone says Chinese is easy should you believe them? ㅋㅋㅋㅋㅋ It is interesting that initially 大 meant "big" as in 大城市. But then it means "heavy", or "strong" in 風好大, 雪下得很大. On the other hand 大 means "loud" in 把收音機開大一點兒. It means "general" in 大反攻, 大手術, 大問題. A highly unusual meaning of 大 is a polite form of address for "your" 大札, 大作. And how would you translate: 天已大亮 or 大清早? https://www.youtube.com/shorts/3zQd3aDkvkQ