Interpretation
Joel B. Green notes that the woman described is a poor peasant, and the ten silver coins, corresponding to ten days wages, "likely represent the family savings." The coins may also have been the woman's dowry, worn as an ornament. Both theories may be true, and either one explains the urgency of the woman's search, and the extent of her joy when the missing coin is found.
Like the parable of the Ten Virgins, this is a parable about women which immediately follows, and makes the same point as, a preceding parable about men. In the Greek, the "friends and neighbors" are female.
Green suggests that the invitation to the "friends and neighbors" may reflect a celebratory meal, which recalls the meals Jesus is accused of sharing with "sinners." The woman's diligent activity in searching may symbolise either Jesus' own activity or that of God the Father. The rejoicing of the angels is understood to be rejoicing along with God.
Read more about this topic: Parable Of The Lost Coin