pile up

Found in Anh - Anh (Wordnet)

Definition Verb (transitive) : To gather or accumulate things into a heap or mass. To form a stack or mound by placing things on top of each other. Verb (intransitive) : To increase in quantity or amount over time, often forming an untidy accumulation. Usage As a transitive verb, "pile up" takes a direct object (the things being accumulated). As an intransitive verb, it describes a process wher...