Noun
A mirror made of glass on which has been placed a backing of some reflecting substance, as quicksilver.
Source: Webster's dictionarylooking glass
It is a curious fact that with Through the Looking-Glass the faculty of making book illustrations departed from me. ... I have done nothing in that direction since. John Tenniel
All things that pass Are wisdom's looking-glass. Christina Rossetti
The world is full of fools; and he who would not wish to see one, must not only shut himself up alone, but must also break his looking-glass. Nicolas Boileau-Despréaux
Credit lost is like a broken looking-glass. Italian Proverb
They who are often at the looking-glass seldom spin. Dutch Proverb
The best looking-glass is the eyes of a friend. Irish Proverb