an action or a service that helps to cause or increase something, usually (but not necessarily) something good or valuable
کمک, سهم, نقش, مشارکت, اعانه, همیاری
He made a very positive contribution to the success of the project.
a significant contribution to scientific knowledge
The star is being given the award for his ‘outstanding contribution to the entertainment field’.
This book represents a major contribution to our understanding of the Holocaust.
She feels the world has overlooked his crucial contribution to the development of rock and roll.
the car’s contribution to the greenhouse effect
She was honoured posthumously for her contribution towards the war effort.
These measures would make a valuable contribution towards reducing industrial accidents.
She says the US needs to do more to recognize the contributions of women and minorities to society.
They studied the relative contribution of various risk factors for bowel cancer.