Keyword competition refers to how many other websites are trying to rank for the same keyword. High competition means lots of sites are targeting that keyword, making it harder to achieve a top ranking. Low competition suggests fewer sites are focusing on that term, potentially making it easier to rank well. Assessing keyword competition helps you pick keywords that balance search volume with your ability to rank for them.
See also: Cost-Per-Click (CPC), Keyword difficulty, Search volume
Further reading: What is Google Trends, and Can I Use it to Find Keywords?
