Marketing Glossary
40 essential terms every DTC marketer should know
Clear definitions, practical examples, and expert insights from someone who's managed $100M+ in ad spend. No fluff, just the metrics and concepts that actually matter for profitable growth.
Core Metrics
AOV
Average Order ValueThe average amount customers spend per transaction. A key metric for understanding customer purchasing behavior.
CAC
Customer Acquisition CostThe total cost to acquire a new customer, including all marketing and sales expenses.
CPA
Cost Per AcquisitionThe cost to acquire one paying customer through paid advertising. Includes all ad spend divided by number of conversions.
CPC
Cost Per ClickThe average amount you pay for each click on your ads. A key metric for measuring traffic acquisition costs.
CPM
Cost Per Mille (Thousand Impressions)The cost to show your ad to 1,000 people. Used to measure the efficiency of brand awareness campaigns.
CTR
Click-Through RateThe percentage of people who click your ad after seeing it. A key indicator of creative performance and relevance.
CVR
Conversion RateThe percentage of website visitors who complete a desired action (purchase, signup, etc.).
LTV
Lifetime ValueThe total revenue a customer generates throughout their relationship with your business.
LTV:CAC
Lifetime Value to Customer Acquisition Cost RatioThe ratio of customer lifetime value to customer acquisition cost. A key metric for business sustainability.
ROAS
Return on Ad SpendRevenue generated for every dollar spent on advertising. A ROAS of 4:1 means $4 in revenue for every $1 in ad spend.
Financial Metrics
Blended ROAS
Blended Return on Ad SpendROAS calculated using total revenue and total ad spend across all platforms and channels.
Breakeven ROAS
Breakeven Return on Ad SpendThe minimum ROAS needed to cover all costs and achieve $0 profit. Critical for setting bid strategies.
Contribution Margin
Contribution MarginRevenue minus variable costs (COGS, shipping, payment processing). The profit available to cover fixed costs and marketing.
MER
Marketing Efficiency RatioTotal revenue divided by total marketing spend across all channels. A blended view of marketing performance.
Payback Period
Customer Acquisition Payback PeriodThe time it takes to recover customer acquisition costs through profit from that customer.
Meta Ads Specific
Advantage+ Shopping
Meta Advantage+ Shopping CampaignsMeta's automated campaign type that uses machine learning to optimize targeting, placement, and creative delivery for ecommerce.
Andromeda Algorithm
Meta's Andromeda Algorithm UpdateMeta's major algorithm update that improved machine learning and made broad targeting more effective than detailed targeting.
Attribution Window
Attribution WindowThe time period after someone clicks or views your ad during which Meta will count conversions as attributed to that ad.
Bid Cap
Bid Cap BiddingA bidding strategy that sets the maximum amount Meta will bid in each auction for your ad placement.
Broad Targeting
Broad TargetingRunning campaigns with minimal audience restrictions, letting Meta's algorithm find the best customers through machine learning.
CBO
Campaign Budget OptimizationMeta's system that automatically distributes budget across ad sets within a campaign to maximize results.
Cost Cap
Cost Cap BiddingA bidding strategy that tells Meta the maximum amount you want to pay for a conversion while maximizing volume.
Custom Audiences
Custom AudiencesAudiences created from your own data - website visitors, customer lists, app users, or engagement with your content.
DCO
Dynamic Creative OptimizationFeature that automatically tests different combinations of creative elements (images, headlines, text) to find the best performing combinations.
Lookalike Audiences
Lookalike AudiencesAudiences created by Meta that share similar characteristics to your existing customers or website visitors.
Strategy & Optimization
Ad Frequency
Ad FrequencyThe average number of times each person in your audience has seen your ad. Key indicator of potential creative fatigue.
Creative Fatigue
Creative FatigueThe decline in ad performance that occurs when your target audience has seen your creative too many times and stops engaging.
Full Funnel
Full Funnel MarketingA marketing approach that targets customers at different stages of the buyer's journey - awareness, consideration, and conversion.
Incrementality
IncrementalityThe additional revenue or conversions that wouldn't have happened without your advertising spend. True measure of ad impact.
Media Mix
Media MixThe combination of different advertising channels and platforms used to reach customers - Meta, Google, TikTok, email, etc.
Prospecting
ProspectingAdvertising to cold audiences - people who haven't interacted with your business before. Used to find new customers.
Retargeting
RetargetingShowing ads to people who have already interacted with your business - visited your website, engaged with content, or made purchases.
DTC & Ecommerce
Churn Rate
Customer Churn RateThe percentage of customers who stop using your product or cancel their subscription in a given period.
Customer Acquisition
Customer AcquisitionThe process and strategy of gaining new customers for your business through various marketing channels and tactics.
First-Order Profitability
First-Order ProfitabilityWhether you make money on a customer's very first purchase, before any repeat purchases or lifetime value.
Subscription LTV
Subscription Lifetime ValueThe total revenue generated from a subscription customer over their entire relationship with your business.
Unit Economics
Unit EconomicsThe direct revenues and costs associated with a single unit of your product or customer. Foundation of profitable scaling.
By Kristijan Arapov • Based on $100M+ in managed ad spend • Updated 2026