catalyst
word
Definition
A catalyst is something or someone that causes a change or speeds up an event, especially by making a process happen faster in chemistry or by starting change in situations.
Usage & Nuances
Common in both scientific (chemistry) and metaphorical use ('catalyst for change'). In chemistry, a catalyst isn't consumed in a reaction. Figuratively, it means something triggers or accelerates change without being the cause itself. Not typically used in everyday informal conversations.
Example Sentences
A catalyst speeds up chemical reactions without being used up.
basic
She was the catalyst for the new project at work.
basic
Water can act as a catalyst in some processes.
basic
His speech was the catalyst that got everyone talking about change.
natural
Social media has been a real catalyst for political movements lately.
natural
Sometimes, a small event is enough to act as a catalyst for big changes.
natural