Which keyword match type offers the highest degree of control over ad triggering, minimizing irrelevant impressions?

The keyword match type offering the highest degree of control over ad triggering, thereby minimizing irrelevant impressions, is the exact match. Exact match means your ad will only show when someone searches for the precise keyword you're bidding on, or very close variations of it. Close variations include misspellings, singular or plural forms, abbreviations, and reorderings of words that don't change the meaning. For example, if your exact match keyword is '[red shoes]', your ad will likely show for searches like 'red shoe', 'buy red shoes', or 'red shoes online'. However, it will generally NOT show for 'shoes red' (unless the engine determines the meaning is the same), 'blue shoes', or 'red running shoes' because these contain additional words or significantly alter the search's intent. This precise targeting reduces wasted ad spend on clicks from users who aren't looking for what you offer, making it the most controlled option compared to broad match or phrase match.