SLOPS' (5 letters) 'SEEPE' The term SOAKS THROUGH can be solved by the crossword solutions SOPS (4 letters) and SLOPS (5 letters). SOPS is an acronym for Standard Operating Procedures, which are a set of instructions that guide the operations of a business or organization. SLOPS is a term used to describe a liquid that is thin and runny, and SEEPE is a verb meaning to slowly pass through a porous material. Therefore, SOAKS THROUGH can be defined as a liquid slowly passing through a porous material.