key up: meaning, definition, pronunciation and examples

Low-to-medium
UK/ˌkiː ˈʌp/US/ˌki ˈʌp/

Informal, occasionally literary or journalistic

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Quick answer

What does “key up” mean?

To make someone excited, nervous, or tense in anticipation of an event.

Audio

Pronunciation

Definition

Meaning and Definition

To make someone excited, nervous, or tense in anticipation of an event.

To emotionally or mentally prepare or prime oneself or others for an upcoming challenging or significant situation; often implying a state of heightened alertness.

Dialectal Variation

British vs American Usage

Differences

Minimal; the phrasal verb is equally understood and used. Slight preference in British English for the adjectival past participle form 'keyed up'.

Connotations

Identical across both variants.

Frequency

Slightly higher frequency in British corpus data, but the difference is negligible.

Grammar

How to Use “key up” in a Sentence

[sb] be/get keyed up (for/about sth)[sb] key [sb/oneself] up (for sth)[sb] feel keyed up

Vocabulary

Collocations

strong
feel keyed upbe/get keyed upkeyed up forkeyed up aboutkey someone up
medium
all keyed upterribly keyed upkeyed up before
weak
keyed up overkeyed up and readyremained keyed up

Examples

Examples of “key up” in a Sentence

verb

British English

  • The manager tried to key the players up for the cup final.
  • Don't key yourself up over one meeting.

American English

  • The coach keyed up the team before the championship game.
  • I need to stop keying myself up about this interview.

adverb

British English

  • (No standard adverbial form. Use adjectival form.)

American English

  • (No standard adverbial form. Use adjectival form.)

adjective

British English

  • She felt terribly keyed up before her driving test.
  • The audience was keyed up for the headline act.

American English

  • He's all keyed up about his vacation to Hawaii.
  • The kids were keyed up before the first day of school.

Usage

Meaning in Context

Business

Used before major presentations, launches, or negotiations, e.g., 'The team was keyed up for the investor pitch.'

Academic

Rare; might appear in literary analysis or psychology texts describing character states.

Everyday

Common for describing feelings before exams, performances, job interviews, or important social events.

Technical

Not used in technical senses outside of possible niche figurative use (e.g., 'keyed up for the system launch').

Vocabulary

Synonyms of “key up”

Strong

agitatedoverwroughton edgehyper

Neutral

excitednervoustensewound up

Weak

alertpreparedanticipatory

Vocabulary

Antonyms of “key up”

calmrelaxedunfazedcomposedlaid-back

Watch out

Common Mistakes When Using “key up”

  • Using 'key up' actively without an object (incorrect: *'I key up before the game.').
  • Confusing it with 'pumped up' (which is purely positive excitement).
  • Misspelling as 'keed up'.

FAQ

Frequently Asked Questions

No, it is primarily used in informal or semi-formal contexts. In very formal writing, synonyms like 'agitated', 'tense', or 'in a state of anticipation' might be preferred.

Yes, but it's often ambivalent. It can describe positive excitement (keyed up for a holiday), but almost always carries an element of nervous tension or overstimulation.

'Keyed up' implies nervous energy and tension, while 'pumped up' suggests pure enthusiasm, confidence, and eagerness without the anxiety.

The correct past tense and past participle is 'keyed up' (e.g., 'She keyed him up', 'He was keyed up'). 'Key upped' is incorrect.

To make someone excited, nervous, or tense in anticipation of an event.

Key up: in British English it is pronounced /ˌkiː ˈʌp/, and in American English it is pronounced /ˌki ˈʌp/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • All keyed up

Learning

Memory Aids

Mnemonic

Think of a musician 'keyed up' (tense and excited) before a concert, with their fingers literally on the keys, ready to play.

Conceptual Metaphor

THE MIND/EMOTIONS ARE A TUNEABLE INSTRUMENT (being wound/tightened to a higher pitch or key).

Practice

Quiz

Fill in the gap
After drinking two coffees and worrying about the deadline, James felt completely .
Multiple Choice

In which sentence is 'keyed up' used CORRECTLY?