The example is the easiest to understand: kan, pan, dan, tan, ban, can, etc. have the same vowels, and all of them take An as the vowel. Put it at the last word of every sentence, and it will read very smoothly and harmoniously. Of course, these words are not easy to use Let me give you an example.
In addition, there are money, cheap, bian, parallel and so on. With ian as the vowel, it can also rhyme with it. Then quan and xuan with uan as vowels can also rhyme with it.
Generally speaking, it depends on whether the ending charm is the same, and it can rhyme with Weng and similar endings, such as Kong and Xiong.
In addition to this similarity, some rhymes are different, but they are similar to each other, which was widely used in that era when the level of poetry and rhyme were not high. Rhyming words like eng and ong (wind and end). However, this practice is not recommended because it is not harmonious. . .
Then, the above example is flat, flat refers to tones, one or two tones are flat, and three or four tones are flat. We can learn more about the poems and the current lyrics of Pingzhuan. All rhyming words are Pingzhuan or Pingdiao.
However, the level tone in poetry does not refer to rhyming words completely, and it is not a simple matter, so it can't help you in this respect.