The term 'small amount of liquid' can be summarized by two crossword solutions: DRIB (4 letters) and OUNCE (5 letters). DRIB is a term used to describe a very small amount of liquid, usually referring to the amount that falls from a surface due to gravity. An OUNCE is a unit of measurement for liquids, equal to approximately 29.57 milliliters. Therefore, both terms can be used to describe a small amount of liquid.