Key
adj.capable, thoughtfulprofessional
What it means
Having a decisive or especially important role in a result.
Reach for it when identifying a factor that materially affects success
Clear ownership was key to finishing the repairs before winter.
Choose between these
7- everyday
central
the element sits at the heart of the explanation
not when Central concerns focus, not necessarily practical impact.
- everyday
success is impossible without the thing named
not when Essential is absolute; key can allow several important contributors.
- warm
importance is urgent and tied to wellbeing
not when Vital sounds excessive for a replaceable contribution.
- professional
one choice changes the direction of events
not when Pivotal fits turning points better than a steady requirement.
- professional
importance comes from advancing a wider plan
not when Strategic positioning does not make something inherently key.
- formal
crucial
the matter may decide success or failure
not when Crucial raises the stakes beyond something merely influential.
- formal
no substitute could serve the same function
not when Use it only when the subject truly cannot be replaced.
Said against
3- minor
- irrelevant
- optional
It naturally appears in
3- key role
Local nurses played a key role in designing the clinic route.
- key insight
One key insight helped the group simplify the entire process.
- key ingredient
Patience was the key ingredient in rebuilding trust.
Where this comes from
- wiktionary, English adjective sense: crucial or important opens in a new tab · retrieved 2026-07-26
The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.