Keywords and Search Terms: Definitions and Usage

Paid search accounts are built around keywords. Paid search budgets are spent on search terms. The two sound like the same thing, and most small business owners treat them that way. They are not the same, and the difference between them explains where a large share of wasted ad money goes.

Two Lists That Never Match

A keyword is a word or phrase an advertiser chooses to bid on in Google Ads. A search term is the exact phrase a person typed into Google that caused the ad to appear.

Google does not only show an ad when someone types the keyword word for word. It shows the ad for searches it judges to be related. The advertiser bids on “water heater repair,” and the ad appears for “water heater repair,” but also for “how to fix a water heater yourself,” “water heater repair jobs” and “free water heater.” Each of those clicks costs money, and some of them were never going to become customers.

Why Google Matches Broadly

Google’s matching options decide how loosely a keyword can be interpreted. Broad match allows the widest range of related searches. Phrase match and exact match narrow the range, though even exact match now includes close variants with the same meaning.

Broad matching helps Google find more searches to show ads on, and it can find genuinely useful searches an advertiser did not think of. It also finds plenty of searches that waste money. Without someone reading the results, there is no way to tell which is which.

The Search Terms Report

The search terms report is the list inside Google Ads that shows every search phrase that triggered an ad, with clicks, cost and conversions next to each one. It is the single most useful report in a small advertiser’s account, and it is one of the least opened.

Reading it weekly answers three questions:

1. Which searches are producing calls and form fills?
2. Which searches are costing money and producing nothing?
3. Which searches show an intent the business does not serve at all?

The answers to the second and third questions become negative keywords.

Negative Keywords Do Most of the Work

A negative keyword is a word or phrase that tells Google not to show an ad when it appears in a search. Adding “jobs,” “free,” “diy” and “how to” as negatives stops a repair business from paying for job seekers and do-it-yourselfers.

Pruning negative keywords is not glamorous work. It does not change the ad copy or the bids. It is usually the most valuable maintenance task in a small account, because it removes spend that was never going to produce a customer.

Common negative keyword groups for local service businesses:

• Employment searches: jobs, careers, hiring, salary
• Do-it-yourself searches: how to, diy, tutorial, video
• Price-only searches with no intent to buy: free, cheap, discount codes
• Searches for a different service the business does not offer
• Searches naming locations far outside the service area

Negative keywords can be added at different levels. A negative added to a single ad group affects only that group. A negative added at the campaign level, or through a shared list, affects every ad group in the campaign or every campaign the list is attached to. Employment and do-it-yourself terms usually belong in a shared list, because they are never wanted anywhere in the account.

Campaign Types That Hide the List

Not every campaign type shows the full search terms list. Performance Max, Google’s automated campaign type, spreads ads across search, maps, video and display, and it reports search terms in a much more limited way than a standard Search campaign.

For a national brand with large budgets, that trade can make sense. For a local business trying to tell a good lead from a bad one, losing sight of what people typed removes the most important information in the account. An advertiser who cannot see the search terms they paid for cannot prune the waste.

What This Looks Like in Springfield

Springfield is the county seat of Greene County and the largest city in southwest Missouri, with 169,176 residents at the 2020 census. A local market of that size has enough search volume for paid search to produce calls quickly, and enough competition that waste adds up fast.

A Springfield agency’s explanation of how the search terms report gets used makes the point that the keywords are what you bid on and the search terms are what people actually typed, and the gap between the two lists is where waste lives. The same page notes that ads have no effect on organic rankings. They buy attention while the slower organic work it bridges to builds.

Conversions That Tell the Truth

Waste also hides in conversion tracking. If every phone call counts as a conversion, including wrong numbers and sales calls from vendors, the account looks healthier than it is. Bidding systems then optimize toward the wrong outcomes.

A cleaner approach counts only calls over a minimum length, or only form fills from real prospects, and demotes the rest rather than deleting them so the history stays honest.

A clean account also makes future decisions easier. When the search terms list contains only relevant searches and the conversions count only real leads, the numbers can be trusted. An owner can then judge whether to raise the budget, pause a service or shift spending toward the phrases that produce the best customers. Without that cleanup, every decision rests on numbers that mix real demand with noise.

Where AI Search Fits

AI answers now appear above many search results, especially for informational questions such as “how much does a water heater repair cost.” Those answers absorb clicks that once went to ads and organic listings alike.

Searches with clear buying intent, such as “water heater repair near me,” still lead to calls and are less often answered by AI summaries. That shifts the value in paid search further toward high-intent terms and makes pruning informational searches even more important. Anyone checking a provider’s local presence can find the agency’s Springfield listing on Google Maps.

Match Types in Plain Terms

Match types are the settings that tell Google how closely a search must resemble a keyword before an ad can show. They are the first control an advertiser has over the gap between keywords and search terms.

Broad match finds the most new searches and produces the most waste without supervision. Exact match produces the least waste and misses some useful searches. Many local accounts use phrase and exact match for their core services and add broad match only where someone is reading the search terms closely enough to catch problems.

Match types changed meaning over the years. Exact match once meant the precise words in the precise order. It now includes misspellings, plurals and phrases Google judges to mean the same thing. That change is one more reason the search terms report matters: even the tightest setting no longer guarantees exactly what an advertiser typed.

How Often to Read the Report

A new account benefits from reading the search terms report every few days for the first month. Most of the obvious waste appears early, and catching it early saves the most money.

Once the obvious negative keywords are in place, a weekly review is usually enough for a small local account. Seasonal businesses benefit from a closer look at the start of each busy season, when new kinds of searches appear. A heating business, for example, sees different searches in the first cold week of the year than in the middle of summer.

The habit matters more than the schedule. An account that is read every week, even briefly, tends to waste less than an account with a sophisticated setup that nobody opens.

The Short Version

Keywords are what an advertiser bids on. Search terms are what customers typed. Google matches broadly, so the two lists drift apart, and the gap is where money is wasted. Reading the search terms report every week, adding negative keywords and keeping conversion tracking honest are the habits that close the gap. A campaign type that hides the search terms makes all three harder.

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