The meanings of these appellations are: weak crown, standing upright, not confused, knowing life, knowing flowers, being ancient and rare, and knowing old age.

These appellations are used to describe people's age stages, mainly from the appellations of people of different ages in China traditional culture. On the one hand, these appellations reflect the meaning of age in China culture, on the other hand, they also express respect and blessings for people of different ages.

Weak crown: refers to the age of 20 for men and 0/5 for women. This is the beginning of adulthood and means the first important stage of adulthood.

Li: refers to a man around the age of 30, at the beginning of his prime. It is also used to describe someone entering a stable stage in their career and life.

Confusion: refers to men in their forties and women in their thirties. At this time, people gradually matured in their thoughts and outlook on life, and were no longer troubled by the confusion of pursuing the past.

Know how to live: men are about fifty years old and women are about forty years old. People at this stage usually experience some ups and downs in life and have a deeper understanding and acceptance of their own destiny.

Flower armor: refers to men who are sixty years old and women who are fifty years old. At this time, people usually enter old age. The implication of flowers is that they are as gorgeous as flowers, which symbolizes that they are still happy despite their old age.

Ancient and rare: refers to men over 70 years old and women over 60 years old. This title means living to 70 years old, which is an important milestone in life and also symbolizes longevity and celebration.

Baptism: refers to men over 80 years old and women over 70 years old. People at this stage are old, which means longevity and old age.

These appellations have existed in the traditional culture of China for a long time, which can be traced back to the records in ancient documents and ancient books.

In the Analects of Confucius, Confucius mentioned some appellations of age groups, such as "knowing destiny at twenty" (that is, weak crown) and "standing at thirty". This shows that in the Spring and Autumn Period and the Warring States Period more than two thousand years ago, people had the habit of addressing and classifying different age groups.

As for when to use each title, there may not be an exact time point to determine. The appearance of these appellations is related to the special attention and cognition of age groups in China traditional society. They have gradually formed and been widely used in the long history, and become common words to describe life stages.

In modern society, due to the changes in social structure and lifestyle, people may divide and address age groups more flexibly. The following are some common examples of age division and related appellations in modern society:

Children: people from birth to adolescence, usually minors.

Teenagers: generally from 13 to 19, usually referring to young people in adolescence and school.

Youth: generally refers to people aged 20-30, young people who are in adulthood but have not yet entered a stable stage.

Mature/middle-aged: Generally speaking, people between the ages of 35 and 55 have entered the stage of career development and family building.

Middle-aged/elderly: Generally speaking, people aged 55 to 65 or above have retired or are about to retire and enjoy their old age.

Old age: generally refers to people aged 65 or above, and is usually used to describe older people.