Shakedown vs. Shake Down
“Shakedown” is a noun, including senses involving extortion, a thorough search, or a testing/settling period. “Shake down” is the corresponding phrasal verb for extorting, searching, or becoming established. The one-word/two-word choice tracks grammatical function.
Use “shakedown” as the noun and “shake down” as the phrasal verb.
Key details
Choose the right form
| Meaning / situation | Form / construction | Decision |
|---|---|---|
| a noun naming extortion, a thorough search, or a testing/settling period | shakedown | Use the closed noun. |
| an action of extorting or thoroughly searching | shake down | Use the two-word phrasal verb. |
| an action/process of becoming settled or established | shake down | Use the phrasal verb where that documented sense applies. |
Quick tests
Meaning / construction test
Is the expression functioning as a noun rather than an action?
If yes: Use “shakedown.”
If no: Use “shake down” for the phrasal-verb senses.
Caveat: Meaning still depends on context because both the noun and phrasal verb have several documented senses.
Examples
The crew completed a shakedown before the long trip.
“Shakedown” is the noun naming a testing or settling period.
The officers were accused of trying to shake down local businesses.
“Shake down” is the phrasal verb in the extortion sense.
The new team needed a few weeks to shake down.
The two-word form functions as a verb describing settling or becoming established.
Further guidance
Core difference
The closed form “shakedown” is a noun; the spaced form “shake down” is a phrasal verb.
Fast Test
If the expression names an event, search, extortion attempt, or test, use “shakedown.” If it carries verb tense or describes the action/process, use “shake down.”
Usage Boundary
Meanings vary by context, but the noun/verb boundary remains the key spelling distinction.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- shakedown — Cambridge English Dictionary (opens in a new tab)Cambridge Dictionary · Closed noun shakedown for extortion/search and related noun senses
- shake down — Cambridge English Dictionary (opens in a new tab)Cambridge Dictionary · Two-word phrasal verb shake down for extortion, searching, or becoming established