Google Ads Glossary

Every Google Ads term you will meet, from Ad Rank to Target ROAS, explained in one or two plain sentences with examples.

Filter terms

A

Ad Rank: The score that decides whether your ad shows and in which position. It combines your bid, ad quality, the expected impact of assets and the context of the search.
Ad Strength: A rating from Poor to Excellent on how varied and relevant your responsive search ad assets are. It describes the ad, not its performance, so treat it as a hint.
Asset: Any extra piece of an ad: sitelinks, callouts, calls, images, structured snippets, lead forms. Assets make ads larger and usually raise click-through rate.
Audience segment: A group of people defined by interests, past visits or your own customer data. In Search campaigns, use "Observation" to report on them without narrowing reach.

B

Bid adjustment: A percentage change to bids for a device, location or schedule. Smart Bidding ignores most of them, except a -100% device adjustment.
Broad match: A keyword match type that lets your ad show for searches related to the meaning of your keyword, even without its words. Needs good negatives and conversion tracking.

C

Click-through rate (CTR): Clicks divided by impressions. A low CTR on Search often means the ad does not match what people searched.
Conversion: An action you count as valuable: a call, a form, a booking, a purchase. Everything Smart Bidding does depends on these being tracked correctly.
Conversion rate: Conversions divided by clicks (or interactions). It varies a lot by industry and offer, so compare your rate against your own history first.
Cost per acquisition (CPA): Cost divided by conversions. Your target CPA should come from what a customer is worth to you, not from an industry average.
Cost per click (CPC): What you pay for one click. You pay just enough to beat the Ad Rank of the advertiser below you, so it is often less than your maximum bid.
Customer match: Uploading your customer emails or phone numbers so Google can target or exclude those people, or use them as a signal.

D

Demand Gen: A campaign type that shows image and video ads on YouTube, Discover and Gmail. Good for creating demand, not for capturing people who are already searching.

E

Enhanced conversions: Sends hashed customer data from your forms to Google so conversions can be matched when cookies are missing. Improves measurement accuracy.
Exact match: The tightest keyword match type, written [like this]. Your ad shows for searches with the same meaning as the keyword, including close variants.

F

Final URL: The page people land on after clicking your ad. It should match the promise of the ad and the search.

G

GA4: Google Analytics 4, the current version of Google Analytics. It can import conversions into Google Ads, but native Google Ads tags are usually more accurate for bidding.
Google Tag Manager (GTM): A free tool for managing tracking tags on your site without editing code each time. Commonly used to fire Google Ads and GA4 conversion tags.

I

Impression share: The share of eligible impressions you actually received. "Lost (budget)" means you ran out of money; "Lost (rank)" means your Ad Rank was too low.

K

Keyword: A word or phrase you bid on. Google matches it to real searches according to its match type.

L

Landing page experience: One of the three parts of Quality Score: how relevant and useful the page is for people who click, including speed on mobile.
Location targeting: Where your ads can show. For local businesses, set it to "Presence: people in or regularly in" your locations, not the default that includes "interest".
Lookback window: How many days after a click a conversion can still be credited to that click. The default is 30 days.

M

Manager account (MCC): A Google Ads account used to access and manage many accounts with one login. Agencies and consultants use it so you never share your password.
Match type: The setting that controls how closely a search must match your keyword: broad, phrase or exact.
Maximise conversions: A Smart Bidding strategy that tries to get the most conversions for your budget. Without a target, it will spend the whole budget.

N

Negative keyword: A word or phrase that stops your ad from showing for searches that contain it. The main tool for cutting wasted spend.

O

Offline conversion import: Uploading sales or qualified leads from your CRM back into Google Ads, so bidding learns which clicks became real customers.
Optimisation score: Google's estimate of how well your account is set up, based on its own recommendations. A high score does not mean a profitable account.

P

Performance Max (PMax): A campaign type that runs across Search, Shopping, YouTube, Display, Discover, Gmail and Maps from one budget, using automation to choose placements.
Phrase match: A keyword match type, written "like this". Your ad shows for searches that include the meaning of your phrase, possibly with words before or after it.

Q

Quality Score: A 1 to 10 diagnostic rating for each keyword, based on expected CTR, ad relevance and landing page experience. Higher scores usually mean cheaper clicks.

R

Responsive search ad (RSA): The standard Search ad format. You write up to 15 headlines and 4 descriptions, and Google tests combinations.
Return on ad spend (ROAS): Conversion value divided by cost. A ROAS of 400% means $4 of revenue for every $1 spent.

S

Search terms report: The list of real searches that triggered your ads. Reading it weekly is the fastest way to find wasted spend.
Smart Bidding: Automated bid strategies that set a bid for every auction using conversion data: Maximise conversions, Target CPA, Target ROAS and Maximise conversion value.

T

Target CPA (tCPA): A Smart Bidding setting that aims for an average cost per conversion. Set it close to your current CPA, then tighten slowly.
Target ROAS (tROAS): A Smart Bidding setting that aims for an average return on ad spend. Needs reliable conversion values to work.
Top of page rate: The share of your impressions shown above the organic results. Useful for seeing whether you are visible enough on high-intent searches.

U

UTM parameters: Tags added to a URL (utm_source, utm_medium, utm_campaign) so analytics tools know where a visit came from.

V

ValueTrack parameter: A Google Ads placeholder like {keyword} or {campaignid} that is filled in automatically when someone clicks, for detailed tracking.
View-through conversion: A conversion after someone saw, but did not click, a Display or video ad. Usually excluded from the main conversion count.

Draft outline. Write each section, then publish. Every Google Ads term you will meet, from Ad Rank to Target ROAS, explained in one or two plain sentences with examples.