ADJ. headlong | cold Bathers would go straight from the hot room to take a cold plunge.
VERB + PLUNGE take The river takes a headlong plunge into a maelstrom of rocks and boulders. (figurative) He finally took the plunge and gave in his notice.
PREP. ~ into a plunge into the icy water | ~ to a plunge to the ground
ADV. downwards, forward, head first, headlong The car plunged headlong into the river. | in The pool was declared open and eager swimmers plunged in.
PREP. down The bus came off the road and plunged down an embankment. | from He plunged from a tenth floor window. | into (often figurative) She plunged straight into her story. | off The car had plunged off the road.
PHRASES plunge to your death A climber plunged 300 feet to his death.