The term ONE IN A FLOCK is composed of three crossword solutions: LAMB (4 letters), GOOSE (5 letters), and EWE (3 letters). The phrase 'one in a flock' is often used to describe someone who stands out from the crowd, and each of these words can be used to represent this idea. A LAMB is a young sheep, and is often seen as a symbol of innocence and purity. A GOOSE is a large waterfowl, and is often seen as a symbol of loyalty and friendship. An EWE is an adult female sheep, and is often seen as a symbol of motherhood and nurturing. All three of these animals are commonly found in flocks, and thus the phrase 'one in a flock' can be used to describe someone who stands out from the crowd.