On the Display Network, all keywords are considered broad match only. This means that you don't need to:
A) include plurals, misspellings, and other variants of your keywords.
B) include negative keywords to refine your placement.
C) include location targeting to narrow the reach of your ads.
D) manage your keyword performance at the ad group level.

Question

Quizplus · Accepted Answer

On the Display Network, keywords are automatically considered broad match, which means Google will show your ads on relevant sites even if they include plurals, misspellings, and other variants of your keywords.

On the Display Network, All Keywords Are Considered Broad Match