Rollover vs. Roll Over
“Rollover” is the closed noun for a carried-forward prize or financial continuation/transfer. “Roll over” is the two-word phrasal verb, including physical movement and financial extension or transfer.
Use “rollover” as the noun in lottery, finance, and continuation contexts. Use “roll over” as the phrasal verb for turning over, yielding, or transferring/extending money, debt, or arrangements.
Key details
Choose the right form
| Meaning / situation | Form / construction | Decision |
|---|---|---|
| noun in lottery, finance, continuation, or transfer contexts | rollover | Use the closed noun. |
| verb for turning physically onto another side | roll over | Use the two-word phrasal verb. |
| verb for extending or transferring money, debt, or an arrangement | roll over | Use the phrasal verb for the action. |
Quick tests
Meaning / construction test
Is the expression naming the action as a verb?
If yes: Use “roll over.”
If no: If it is the noun in the documented prize, finance, or continuation senses, use “rollover.”
Examples
The jackpot rollover increased the next prize.
“Rollover” is the noun.
Roll over onto your side.
The physical action is the two-word phrasal verb.
They decided to roll over the loan for another year.
The financial action uses “roll over.”
Further guidance
Core difference
Use the documented noun/adjective form for the thing, result, event, or modifier; use the spaced form when the expression functions as a verb or predicate.
Fast Test
Ask what job the expression is doing in the sentence. A noun/adjective form may be closed or hyphenated by dictionary convention; a verb or predicate normally keeps the words separate.
Variant Boundary
The noun is “rollover”; the phrasal verb is “roll over.”
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.
- Rollover — Cambridge Dictionary (opens in a new tab)Cambridge Dictionary · Closed noun “rollover” in prize, finance, and continuation contexts
- Roll over — Cambridge Dictionary (opens in a new tab)Cambridge Dictionary · Two-word phrasal verb “roll over” for bodily movement, yielding, or extending/transferring financial arrangements