English Reference

Word

startup

Phoneticsstart·up, stress on the first syllable

US/ˈstɑɹˌtəp/

UK/stˈɑːtʌp/

Definitions

01a new company

B1 · Intermediate Countable noun Business

n. a new business or organization that is designed to grow very quickly, often in technology.

n. a newly established business venture, typically characterized by innovation and a scalable business model aimed at rapid growth.

“She left her job at the bank to join a small tech startup in London.”

“The venture capital firm specializes in seed-stage startups that focus on sustainable energy solutions and carbon capture technology.”

02starting a machine

B2 · Upper Intermediate Uncountable noun Computing

n. the act of starting a machine, a computer, or a complicated process.

n. the process of setting a system, machine, or software application into operation.

“The machine makes a loud humming noise during startup.”

“The system administrator identified a script that was significantly delaying the server startup during the morning peak hours.”

Synonyms

initializationactivationboot

Antonyms

03an upstart

C2 · Proficiency Countable noun Archaic

n. someone who has suddenly become important or famous but does not have much experience.

n. a person who has suddenly risen to a position of wealth or power but lacks the appropriate social background or experience.

“The old lords looked down on the young startup who had just bought the estate.”

“In the nineteenth-century novel, the protagonist is often depicted as a social startup attempting to navigate the rigid hierarchies of the aristocracy.”

Synonyms

upstartparvenu

Real-World Examples

“The boot camp will use AI tools from US tech firms including Microsoft, the ChatGPT developer OpenAI and Anthropic, the startup behind the Claude chatbot.”
The Guardian 13 Aug 2026
“His wedding guests gave $6k to fund a health startup.”
NPR 12 Aug 2026

Etymology

Deverbal from start up.

From start + up, describing a boot that starts up (reaches up) to the middle of the leg.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Related words

Domains

BusinessComputing

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

QR code

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English Reference