This is the 869th most frequent Vietnamese word.
thiên
"Thiên" in Vietnamese means "heaven," "sky," or relates to "nature" or "divine."
In this sentence, "thiên" is used as part of "thiên nhiên" which means "nature", referring to the natural world.
Bầu trời hôm nay thật trong xanh, đúng là một cảnh đẹp của thiên nhiên.
Today's sky is very clear, truly a beautiful scene of nature.
Here, "thiên" is part of "thiên tài" meaning "prodigy", describing someone with exceptional natural ability or talent.
Anh ấy được mệnh danh là đứa con thiên tài trong làng.
He is nicknamed the prodigy of the village.
In this case, "thiên" is used as part of "thiên đường" meaning "paradise" or "heaven", suggesting an idyllic or perfect place.