English UsageComparison guide

Catch-Up vs. Catch Up vs. Catchup

Use open “catch up” for the phrasal verb and hyphenated “catch-up” for the ordinary noun or attributive adjective. Cambridge also records closed “catchup” in narrower combinations such as “catchup TV,” so it should not be generalized as the default spelling for every noun or verb use.

Quick answer

Write “catch up” as the verb (“I need to catch up”) and “catch-up” as the ordinary noun/adjective (“a catch-up meeting”). Use closed “catchup” only where the established term or house style specifically uses it.

Key details

Core differenceopen form for the phrasal verb; hyphenated form for the ordinary noun/adjective; closed form has narrower attested uses
Rule Familyword-boundary-and-hyphenation
Termscatch up, catch-up, catchup

Further guidance

Closed Form Boundary

Do not turn every noun into “catchup”; closed spelling is documented in some specific compounds, including “catchup TV.”

Noun Adjective Use

Use “catch-up” for the ordinary noun or adjective, such as a catch-up or catch-up session.

Verb Use

Use “catch up” as the phrasal verb for reaching a level, completing delayed work, or exchanging recent news.

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.

  1. Catch up / catch-up — Cambridge Dictionary (opens in a new tab)Cambridge Dictionary · Headword evidence distinguishing open phrasal verb “catch up” from hyphenated noun/adjective “catch-up.”

Related guides

English Usage

In Between vs. In-Between vs. Inbetween

Use “in between” as a two-word phrase when something is between two points, times, states, or items. Use the hyphenated “in-between” when it functions as an adjective meaning intermediate. The closed form “inbetween” is not the standard dictionary form for these ordinary uses.

English Usage

Pro Forma vs. Proforma vs. Pro-Forma

For the general English expression, major dictionary treatment favors the two-word form “pro forma.” Cambridge also records “proforma invoice” as a variant within that business compound, so the closed form should not be generalized into a universal spelling rule.

Explore the topic