Shadchan (Shadchonim plural)'s a Hebrew word for matchmaker. Judaism has found that a good match or couple's most likely to be people with the same, or very similar, backgrounds. Therefore, a matchmaker's most likely to be someone who's familiar with both sides and's in a position to introduce the interested parties to each other. Many Shadchonim carry out Shidduchim as a profession.… (More on Shadchan)