overdrive

American  

[oh-ver-drahyv, oh-ver-drahyv] / ˌoʊ vərˈdraɪv, ˈoʊ vərˌdraɪv /

verb (used with object)

overdrove, overdriven, overdriving

1. to push or carry to excess; overwork.

2. to drive too hard.

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noun

1. Machinery, Automotive. a device containing a gear set at such ratio and arrangement as to provide a drive shaft speed greater than the engine crankshaft speed.

2. Also called hyperdrive.  Informal. a state of intense activity or productivity.

   The political campaign has shifted into overdrive.

overdrive British  

noun

1. a very high gear in a motor vehicle used at high speeds to reduce wear and save fuel

2. in a state of intense activity

3. into a state of intense activity

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verb

1. (tr) to drive too hard or too far; overwork or overuse

Etymology

Origin of overdrive

First recorded before 950; Middle English overdriven “to cover over, overpower”; Old English oferdrīfan “to drive away, overthrow”; equivalent to over- ( def. ) + drive ( def. )

Example Sentences

Using human Alzheimer's brain cells and other experimental models, the team discovered a chemical change that can push the brain's immune response into overdrive.

From Science Daily • May 31, 2026

The influx went into overdrive during and after the Covid pandemic, as newcomers from a wider swath of the U.S. started pouring in.

From The Wall Street Journal • May 15, 2026

As a rapid rally in semiconductor stocks reignites comparisons with 1999 — when the dot-com frenzy went into overdrive, eventually peaking in March 2000 — some investors have noticed another troubling parallel.

From MarketWatch • May 15, 2026

"That's why so many governments are pushing renewables plans into overdrive: to restore national security, economic stability, competitiveness, policy autonomy and basic sovereignty," he added.

From Barron's • Apr. 30, 2026

Now her heart rattled into overdrive at the thought of opening them.

From "Dactyl Hill Squad" by Daniel José Older