This is the 522nd most frequent Chinese word.
红
"红" means "red."
Here, "红色的" describes the color of the dress, indicating its physical attribute.
她喜欢那件红色的裙子。
She likes that red dress.
In this sentence, "红" is used figuratively to mean "popular" or "famous."
这个歌手最近很红。
This singer has been very popular recently.
"红光灿烂" uses "红" to convey a vibrant red glow, depicting the natural phenomenon during sunrise.