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Marketing Glossary

Clear, concise definitions of the terms every marketer needs to know.

A

  • A/B Testing (Ads) — A controlled experiment comparing two or more ad variations to determine which performs better on a specific metric (CTR, CPA, ROAS), used across Meta, Google, and LinkedIn to optimize creative, targeting, and strategy.
  • Ad Copy — The written text in an advertisement, including headlines, primary text, descriptions, and calls-to-action. Ad copy communicates the value proposition and drives the user to take a specific action.
  • Ad Creative — The visual and textual content of an advertisement, including images, videos, headlines, body copy, and calls-to-action. Ad creative is the single most impactful variable in campaign performance across Meta, Google, and LinkedIn.
  • Ad Relevance Score — A metric used by Meta Ads to rate how well an ad resonates with its target audience, broken into Quality Ranking, Engagement Rate Ranking, and Conversion Rate Ranking — each compared against competing ads for the same audience.
  • Ad Spend — The total amount of money invested in advertising campaigns over a given period, excluding management fees and creative production costs. Ad spend is the basis for calculating ROAS, CPA, and campaign ROI.
  • Advantage+ (Meta) — Meta's suite of AI-powered advertising automation tools that handle audience targeting, creative optimization, placements, and budget allocation with minimal manual configuration.
  • AI Ad Management — The use of artificial intelligence to create, optimize, and manage paid advertising campaigns, ranging from platform-native AI features like Smart Bidding to third-party autonomous platforms that manage the full campaign lifecycle.
  • AI Max for Search (Google) — Google's AI enhancement for Search campaigns that automatically expands keyword matching, generates ad copy variations, and optimizes landing page selection to deliver more conversions at similar CPA.
  • Attribution Window — The time period after an ad click or view during which a conversion is credited to that ad. Meta's default is 7-day click / 1-day view; Google's default varies by conversion action and bidding strategy.
  • Autonomous Advertising — The AI-driven management of paid ad campaigns across multiple platforms with minimal human intervention, where AI agents handle the full campaign lifecycle from strategy to optimization rather than just executing predefined rules.

B

  • Broad Match — A Google Ads keyword match type that triggers ads for searches related to the keyword's meaning, including synonyms, related topics, and implied intent — the widest reach of all match types.

C

  • Campaign Budget Optimization (CBO) — Meta's automated budget distribution system that allocates campaign-level budget across ad sets in real time based on performance, eliminating the need for manual ad set budget management.
  • Campaign Structure — The organizational hierarchy of an advertising account — campaigns, ad groups/ad sets, and ads — that determines budget allocation, targeting scope, and optimization signals across Meta, Google, and LinkedIn.
  • Conversions API (CAPI) — Meta's server-side tracking solution that sends conversion events directly from an advertiser's server to Meta, bypassing browser-level tracking restrictions from iOS 14.5+ and ad blockers.
  • CPA (Cost Per Acquisition) — The average cost to acquire one customer or conversion through advertising. Calculated as total ad spend divided by the number of conversions.
  • CPC (Cost Per Click) — The price an advertiser pays each time a user clicks on their ad. CPC is the most common pricing model for search ads and performance campaigns across Google Ads and Meta Ads.
  • CPM (Cost Per Mille) — The cost an advertiser pays for 1,000 ad impressions. CPM is the standard pricing metric for awareness campaigns and is used across Meta, Google Display, LinkedIn, and programmatic advertising.
  • Cross-Platform Advertising — The strategy of running and coordinating paid ad campaigns across multiple platforms — typically Meta, Google, and LinkedIn — from a unified approach to maximize reach, optimize budget allocation, and create consistent customer journeys.
  • CTR (Click-Through Rate) — The percentage of people who click on an ad after seeing it, calculated as clicks divided by impressions. CTR measures ad engagement effectiveness across all platforms.
  • Custom Audiences — Advertising audiences built from an advertiser's own data — customer lists, website visitors, app users, or engagement data — used for retargeting and as seed audiences for lookalikes on Meta, Google, and LinkedIn.
  • CVR (Conversion Rate) — The percentage of users who complete a desired action (purchase, signup, lead form) after clicking an ad. Calculated as conversions divided by clicks.

D

  • Demand Gen Campaigns (Google) — Google's campaign type designed for mid-funnel demand generation across YouTube, Discover, and Gmail, using visual and video creative to reach users who haven't yet expressed search intent.
  • Dynamic Creative Optimization (DCO) — An advertising technology that automatically assembles and tests multiple creative elements — headlines, images, descriptions, CTAs — to find the highest-performing combination for each audience segment.

E

  • Exact Match — A Google Ads keyword match type that triggers ads only for searches matching the keyword's exact meaning, including close variants like misspellings, plurals, and reworded queries with identical intent.

F

  • Frequency Capping — A campaign setting that limits how many times the same user sees a particular ad within a given time period, preventing ad fatigue and wasted impressions on audiences that have already been sufficiently exposed.

G

  • Google Ads Quality Score — A 1-10 rating Google assigns to each keyword in a Google Ads account based on expected click-through rate, ad relevance, and landing page experience. Higher Quality Scores reduce CPC and improve ad position.

I

  • Impression Share — The percentage of total available impressions that your ads received, calculated as impressions divided by estimated eligible impressions. Used primarily in Google Ads to measure market coverage and identify growth opportunities.

L

  • Landing Page Optimization — The process of improving post-click conversion rates by testing and refining page elements — headlines, layout, forms, speed, and content — to maximize the percentage of ad visitors who complete the desired action.
  • Lookalike Audiences — Audiences created by advertising platforms that find new users who share characteristics with an advertiser's existing customers or website visitors, available on Meta (Lookalike Audiences) and Google (Similar Segments).

M

  • Media Buying — The process of purchasing advertising space and inventory across platforms to reach a target audience, encompassing strategy, negotiation, placement, and optimization of ad spend across Meta, Google, LinkedIn, and other channels.
  • Meta Pixel — A JavaScript tracking code installed on a website that records visitor behavior and conversions, enabling Meta Ads targeting, optimization, and attribution across Facebook and Instagram campaigns.
  • Multi-Touch Attribution — An attribution model that distributes conversion credit across multiple marketing touchpoints in the customer journey, rather than assigning all credit to the first or last interaction.

P

  • Performance Max (Google) — Google's AI-powered campaign type that runs ads across all Google properties — Search, Display, YouTube, Gmail, Discover, and Maps — from a single campaign using automated bidding, targeting, and creative optimization.
  • Phrase Match — A Google Ads keyword match type that triggers ads for searches containing the keyword's meaning in the specified order, allowing additional words before or after but preserving the core phrase intent.
  • Programmatic Advertising — The automated buying and selling of digital ad inventory through real-time bidding (RTB) auctions and algorithmic placement, encompassing display, video, native, and connected TV advertising across thousands of publisher websites.

R

  • Retargeting / Remarketing — The practice of showing ads to users who have previously visited your website, engaged with your content, or interacted with your brand, using tracking pixels and audience lists across Meta, Google, and LinkedIn.
  • ROAS (Return on Ad Spend) — The revenue generated for every dollar spent on advertising, calculated as revenue divided by ad spend. A ROAS of 4.0 means $4 earned per $1 spent.

S

  • Smart Bidding — Google Ads' suite of automated bidding strategies that use machine learning to optimize bids in real time for each auction, including Target CPA, Target ROAS, Maximize Conversions, and Maximize Conversion Value.

T

  • Target CPA Bidding — A Google Ads Smart Bidding strategy that automatically sets bids to achieve conversions at a specified average cost per acquisition, using machine learning to optimize each auction in real time.
  • Target ROAS Bidding — A Google Ads Smart Bidding strategy that sets bids to achieve a specified return on ad spend, prioritizing conversions that generate the highest revenue relative to cost.