Is it forbidden to lengthen the eyebrows with a razor, knowing that it is not for the purpose of beautification or tattooing, but because the eyebrows are short, with a slight trimming of them?

It is not permissible to lengthen eyebrows for adornment for men or women. However, if they are short and considered a defect, it is permissible to lengthen them to the extent that removes the defect, whether by shaving or other means. Similarly, it is not permissible to pluck eyebrows for adornment, but it is permissible to pluck them if it is to remove a defect, such as if they cause harm or disfigurement.