A is far or lucky, used for weddings.
wǔ
Interpreted as a blessing or auspicious word for marriage.
According to the source of the Biography of Dou E's Injustice in Song Dynasty, five sons of Dou, Yi, Yan, Kan, and Nuo, arrived one after another, so they were called "five sons leaving the family".
Structural subject-predicate idioms
Usage subject-predicate type; As objects and attributes; Used as a blessing to marriage
For example, "Speech at the Symposium on Literature and Art Work and the Conference on Feature Film Creation": "It is not good for five children to get down to business as soon as they come in."