The crossword solution for the term DRIP (IN) is SEEP (4 letters). The term 'drip (in)' refers to a slow and steady flow of liquid, such as water or oil. This type of flow is often referred to as seepage, which is why the crossword solution is SEEP. Seepage occurs when a liquid slowly passes through a porous material, such as soil or rock, and is often used to describe the slow movement of groundwater.