Breakup vs. Break Up
“Break up” is a phrasal verb, while “breakup” is a noun for an ending, separation, or division. Cambridge also records the hyphenated noun “break-up,” so noun styling can vary even though the verbal form remains two words.
Use “break up” as a verb (“They broke up”). Use “breakup” as a noun (“the breakup”); “break-up” is also a dictionary-recorded noun variant.
Key details
Choose the right form
| Meaning / situation | Construction | Decision |
|---|---|---|
| verb: separate, end a relationship, disperse | break up | use the two-word verb |
| noun: separation or ending | breakup | use the closed noun; a hyphenated noun variant is also recorded |
Quick tests
Part-of-speech test
Is the phrase performing the action or naming the event?
If yes: For the verb, write “break up.”
If no: For the noun, “breakup” is standard; follow a required dictionary/house style if it prefers “break-up.”
Caveat: Do not use the closed noun spelling as a finite verb.
Examples
They decided to break up.
The two-word form is the verb.
The breakup was difficult for both teams.
The closed form is the noun.
The group broke up after the final show.
The phrasal verb inflects as “broke up.”
Further guidance
Core difference
Use “break up” when it is a verb. Use “breakup” as a noun in closed-form style; Cambridge also records “break-up” as a noun variant.
Fast Test
“They broke up” is verbal and takes two words. “The breakup was difficult” names the event and uses a noun form.
Style Boundary
Noun spelling can vary between closed “breakup” and hyphenated “break-up,” so do not turn one dictionary-supported noun style into a universal rule.
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.
- Breakup — English meaning (opens in a new tab)Cambridge University Press · Dictionary noun record for breakup
- Break up — English meaning (opens in a new tab)Cambridge University Press · Dictionary phrasal-verb and noun-variant record for break up / break-up