The bronze script of character Orifice is
A hair on the top head of a Child (Post 21).
The hair is on upper right.
Dictionary of Pictography explains that there is a bunch of hair as a sign of adulthood. But there are other explanations, the one agreed by many people is that the baby's fontanelle which is like a small hole, which makes sense to me. The upper right curve is an indicator for the fontanelle.
The big seal script of the character is
Similar to the second bronze script.
The small seal script of the character is
The left is character Child, the right one is the curve separated from the head of child right now.
The clerical script of the character is
The left is character Child, the right one is the curve.
The song typeface of the character is
Same as clerical script.
The pinyin of the character is Kong3.
Some points I want to emphasize for character 孔
1, 孔 is small, and opening ends hole, which could be in/on every where.
2, 孔 is a popular surname. Confucius - 孔子，his family name is 孔.