From Longman Dictionary of Contemporary Englishgap in the marketgap in the marketBBMa product or service that does not exist, so that there is an opportunity to develop that product or service and sell it → gap
Examples from the Corpus
gap in the market• Clearly, a gap in the market.• At the time Cook was concentrating on smaller, more select parties which left a gap in the market for larger tours.• There was a gap in the market which wouldn't last for ever.• Laura had always been able to identify gaps in the market and fill them.• Part of the skill of successful development is in identifying and satisfying gaps in the market which offer higher than usual returns. 