1 [uncountable and countable]BO
a move to a more important job or position in a company or organization:
I want a job with good prospects for promotion.
Your promotion to Senior Editor is now official.
2 [uncountable and countable]BBA
an activity intended to help sell a product, or the product that is being promoted:
a winter sales promotion
the activity of persuading people to support something
the promotion of energy conservation
the activity of helping something to develop or increase
the promotion of international environmental cooperation
5 [uncountable] British EnglishDS
when a sports team moves into a better group of teams [≠ relegation]