The term 'A Drop in the Ocean' is a metaphor for something small and insignificant. The crossword solutions for this term are 'EBB' (3 letters) and 'TEAR' (4 letters). An EBB is a gradual decrease in the size or intensity of something, while a TEAR is a drop of liquid that comes from the eyes. Together, these two words can be used to describe the insignificance of something compared to the vastness of the ocean.