The closer the Competitive density score is to 0, the higher the number of advertisers currently bidding on this keyword.

The statement is false. In Semrush, Competitive Density (CD) is an index from 0 to 1, indicating the level of competition among advertisers for a specific keyword. A CD score closer to 1 signifies higher competition, meaning more advertisers are bidding on that keyword. Conversely, a CD score closer to 0 indicates lower competition, with fewer advertisers bidding. Therefore, a score closer to 0 means fewer, not more, advertisers are currently bidding.