Pronunciation: /ˈpaɪlʌp/
noun a large number of things that are heaped or stacked on top of each other
A1 There was a big pileup of toys in the corner of the room.
A2 The traffic came to a standstill due to a pileup of cars on the highway.
B1 The pileup of paperwork on my desk is overwhelming.
B2 The pileup of orders caused delays in shipping out products.
C1 The pileup of evidence led to a breakthrough in the investigation.
C2 The pileup of emotions made it difficult to think clearly.
verb no applicable
A1 The children piled up their toys in the corner of the room.
A2 After the game, the players piled up their equipment on the sideline.
B1 The dishes in the sink started to pile up after a few days of not washing them.
B2 Due to the accident, there was a massive pileup of cars on the highway.
C1 The paperwork began to pile up on my desk, causing me to feel overwhelmed.
C2 The company's debts continued to pile up, leading to financial instability.
formal The highway was closed due to a massive pileup involving multiple vehicles.
informal There was a huge pileup on the freeway this morning, causing major delays.
slang Dang, did you see that crazy pileup on the road? It was insane!
figurative The project hit a pileup when several key team members left unexpectedly.
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