Catalyst
noun /ˈkætəlɪst/ — The thing that makes everything else move.
Definition
A person or thing that precipitates an event or change; an agent of acceleration.
Beyond the definition
Borrowed from chemistry but now essential in everyday language. A catalyst doesn't cause something — it accelerates what was already ready to happen. The right catalyst at the right moment can be everything.
Origin & history
From Greek katalysis — dissolution (kata 'down' + lyein 'to loosen').
Example sentences
Illustrative sentences for learning, not verified community posts or sourced quotations.
That conversation was the catalyst for the most significant change of her career.
The new funding acted as a catalyst, suddenly making everything possible.
Sometimes a crisis is the catalyst for the clarity you've been avoiding.
Synonyms
trigger, spark, impetus, accelerant, agent
Antonyms
deterrent, inhibitor, obstacle
Related words
- stimulus
- trigger
- accelerant
- impetus
Catalyst vs trigger
A trigger is a direct cause — the specific event that sets something off. A catalyst is more precise: it accelerates what was already ready to happen, without necessarily being consumed in the process (as in chemistry). A trigger can cause something that wasn't inevitable; a catalyst speeds up what was. Every catalyst can be a trigger, but not every trigger is a catalyst.
Word in the Wild
See how this word appears in life, language and stories.
Illustrative sentences and imagined stories for learning — not verified sightings, interviews, or sourced quotations.
Fictional scene
Creating a culinary emulsion
A hand drizzles oil into a whisked mixture, transforming the two liquids into a single, creamy, stable sauce.
The act of drizzling and whisking serves as a literal agent of change, accelerating the transformation of separate ingredients into a new, unified state, mirroring how a catalyst triggers change.
Image credit: Wordspun · AI-generated conceptual illustration