Expressions used in Everyday Spoken English in Social and Professional contexts
be instrumental (in/to/for)
1) an important part of something
How to MemorizePopularity HighProfessional MediumSocial
she was instrumental in my success
As a verb, 'to be instrumental' in something means to be an important or intrinsic part of it. You might have been 'instrumental in setting up' something or 'instrumental in researching' something, for example. This is a verb used more often in formal situations. Similar phrases include 'vital in/to' and 'to be a big part of'.
Social Examples (Advance)
My wifewas instrumental in my success. Without her support and guidance, I would have been lost.
Her part in the play was instrumental in moving the story along.
Professional Examples (Basic)
High sales and great customer service were instrumental parts of the company's recent success.
The new machinery was instrumental in increasing the volume of our output.
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