English Reference

Phrasal verb

key on

Definition

phrasal verb. to focus attention on something, often in a way that is important or critical.

phrasal verb. to concentrate attention on; transitive phrasal verb, commonly used in academic or technical contexts to emphasize the importance of a particular aspect.

Examples

“The teacher keyed on the main ideas of the chapter.”

“During the meeting, the manager keyed on the project's budget issues.”

“The researcher keyed on the anomalies in the data, leading to a breakthrough in the study.”

Examples

simple

“The teacher keyed on the main ideas of the chapter.”

contextual

“During the meeting, the manager keyed on the project's budget issues.”

complex

“The researcher keyed on the anomalies in the data, leading to a breakthrough in the study.”

Usage

used with a noun indicating the focus; more formal than 'focus on'.

Teaching tip

contrast with 'focus on' — 'key on' is more formal and often used in academic writing to highlight critical aspects.

Pitfall

The report keyed on the problem, but the solution was unclear.

The report focused on the problem, but the solution was unclear.

'key on' is less common in general writing; 'focus on' is more widely understood and appropriate in most contexts.

Phrasal verb

Particles

on

Separability

inseparable

Pattern

key + on + object

Synonyms

Antonyms

Grammar

This entry

Level
B2 · Upper Intermediate
Updated

Scan code

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English Reference