(of the way in which a heavy object falls) with a plunk / (of the way in which a heavy object falls) with a bonk / (of the way in which a heavy object falls) with a kerplunk

(of the sound produced when a heavy object fall) kerplunk / (of the sound produced when a heavy object fall) bonk / (of the sound produced when a heavy object fall) plunk

(of the way in which someone receives many things) like a windfall / (of the way in which someone receives many things) all at once

(of the way in which something increases) with a rush / (of the way in which something increases) suddenly / (of the way in which something increases) sharply

negligent act

careless words / irresponsible words

a series of waves

a series of waves

omission / corner-cutting

omission / corner-cutting