Keyword intent (also known as search intent) is the reason why a user enters a specific term into a search engine.
For example, when someone searches “buy chia seeds,” the intent behind that search is probably to make a purchase.
But someone searching “what are chia seeds” probably just wants to learn more basic information about the chia seeds.
You can see this by entering the term into the Keyword Overview tool, which shows the intent type is informational.