What does the idiom ‘a drop in the ocean’ mean?

Explanation

‘A drop in the ocean’ is an idiom describing an amount so small that it makes little to no meaningful difference compared to what is actually needed, as in ‘The donation was generous, but it was just a drop in the ocean compared to the total cost of rebuilding.’ The image of a single drop of water within the vastness of an ocean captures just how insignificant the quantity is by comparison. Explore more English MCQs on mcqstutor to keep practicing.