A person who you have been friends with for a long time.
old friend
A fellow worker or member of a staff, department, profession, etc.
a colleague
A son of one's husband or wife by a previous marriage.
stepson
The child who is not the natural child of the parents but has become a true child by legal action.
an adopted child
A person who acts in the place of another person's biological mother.
surregate mother
