Growth Marketing Glossary: 40+ Terms Explained

10 min readUpdated June 2025By CTA Flow

Growth marketing has its own vocabulary. Some terms are borrowed from product, some from finance, some from engineering. This glossary gives you plain-English definitions for the terms you'll encounter most often — with context on why each one matters.

A–C

A/B Test: Comparing two versions of a page, email, or ad to see which performs better. A/B testing requires statistical significance before declaring a winner. Activation: The moment a new user experiences the core value of a product for the first time. CAC (Customer Acquisition Cost): Total sales and marketing spend ÷ new customers acquired. If you spend ₹1 lakh and acquire 100 customers, CAC = ₹1,000. Churn Rate: % of customers who cancel or don't renew in a given period. Monthly churn of 3% = 36% annual churn. Cohort Analysis: Grouping customers by when they started (joined in January, joined in February) and comparing their behaviour over time. Conversion Rate: % of visitors who complete a desired action (purchase, form submission, button click). Conversion Rate = conversions ÷ sessions × 100.

D–L

DAU/MAU: Daily / Monthly Active Users. The DAU÷MAU ratio measures engagement — WhatsApp is ~75%, considered exceptional. Funnel: The sequence of steps from awareness to conversion. Each step has a drop-off rate. Funnel analysis identifies where to invest in improvement. LTV (Lifetime Value): Total revenue expected from a customer over their entire relationship. LTV÷CAC >3 is the general benchmark for sustainable growth. MRR (Monthly Recurring Revenue): Total predictable revenue in a month. The key metric for subscription businesses. Net Revenue Retention (NRR): Revenue retained from the existing customer base including expansions, minus churn. NRR >100% means expansion revenue offsets churn.

M–P

NPS (Net Promoter Score): Customer loyalty metric on 0–10 scale. Promoters − Detractors = NPS. North Star Metric: The single metric that best captures the core value your product delivers to customers. Optimising everything else to move this metric. OKRs: Objectives and Key Results. A goal-setting framework. Objective = qualitative goal. Key Results = measurable milestones. PMF (Product-Market Fit): When a product satisfies a strong market demand. Indicated by high retention, strong NPS, and organic word-of-mouth. PLG (Product-Led Growth): Growth driven by the product itself — free trials, viral mechanics, in-product referrals — rather than sales-led outreach.

R–Z

Retention: % of customers who continue using the product after a defined period (Day 7, Day 30, Month 3). Retention is the foundation of all other growth metrics. ROAS (Return on Ad Spend): Revenue ÷ ad spend. ROAS of 3x = ₹3 revenue for every ₹1 spent. ROI (Return on Investment): (Revenue − Investment) ÷ Investment × 100. Segmentation: Dividing an audience by shared characteristics (behaviour, demographics, lifecycle stage) to send more relevant messages. Time-to-Value: How long it takes a new user to experience the core value of the product. Shorter = better. UTM Parameters: URL tags that track traffic source, medium, campaign, and content in analytics tools. Viral Coefficient: The number of new users each existing user brings in. K > 1 = viral growth. WoW / MoM / YoY: Week over week / Month over month / Year over year growth comparisons.

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