--- title: "The SaaS Dictionary - Learn about MRR, ARR, Churn Rate..." description: "The SaaS Dictionary is your complete guide to navigating the world of SaaS terms, metrics, and KPIs. Learn about MRR, ARR, Churn Rate, and much more." url: https://www.fenerum.com/en-DK/dictionary/ --- --- ## A - [Annual Recurring Revenue (ARR)](https://www.fenerum.com/en-DK/dictionary/arr.md) - [Average Revenue Per User (ARPU)](https://www.fenerum.com/en-DK/dictionary/arpu.md) - Annual Contract Value (ACV) - Active Users --- ## B - [Burn Rate](https://www.fenerum.com/en-DK/dictionary/burn-rate.md) --- ## C - [Capital Expenditure (CAPEX)](https://www.fenerum.com/en-DK/dictionary/capex.md) - [Cash Flow](https://www.fenerum.com/en-DK/dictionary/cash-flow.md) - [Churn Rate](https://www.fenerum.com/en-DK/dictionary/churn-rate.md) - Conversion Rate - [Customer Acquisition Cost (CAC)](https://www.fenerum.com/en-DK/dictionary/cac.md) - [Customer Lifetime Value (CLV)](https://www.fenerum.com/en-DK/dictionary/clv.md) --- ## D - [Dunning](https://www.fenerum.com/en-DK/dictionary/dunning.md) --- ## E - [EBITDA](https://www.fenerum.com/en-DK/dictionary/ebitda.md) - [ERP System](https://www.fenerum.com/en-DK/dictionary/erp-system.md) - Expansion Rate --- ## F - [Freemium](https://www.fenerum.com/en-DK/dictionary/freemium.md) --- ## G - [Gross Revenue Retention (GRR)](https://www.fenerum.com/en-DK/dictionary/grr.md) - Growth Rate - Gross Margin (GM) --- ## K - Key Performance Indicator (KPI) --- ## L - LTV/CAC Ratio - Lead-to-Customer Rate --- ## M - [Monthly Recurring Revenue (MRR)](https://www.fenerum.com/en-DK/dictionary/mrr.md) --- ## N - [Net Revenue Retention (NRR)](https://www.fenerum.com/en-DK/dictionary/nrr.md) - [Net Promoter Score (NPS)](https://www.fenerum.com/en-DK/dictionary/nps.md) --- ## O - [Operating Expenditure (OPEX)](https://www.fenerum.com/en-DK/dictionary/opex.md) --- ## R - [Retention](https://www.fenerum.com/en-DK/dictionary/retention.md) - [Revenue Recognition](https://www.fenerum.com/en-DK/dictionary/revenue-recognition.md) - [Rule of 40](https://www.fenerum.com/en-DK/dictionary/rule-of-40.md) --- ## S - [Software as a Service (SaaS)](https://www.fenerum.com/en-DK/dictionary/saas.md) - [Subscription](https://www.fenerum.com/en-DK/dictionary/subscription.md) - Serviceable Available Market (SAM) - Serviceable Obtainable Market (SOM) - Sales Qualified Leads (SQL) --- ## T - Total Addressable Market (TAM) --- ## W - Win Rate --- ## Navigation Up: [Subscription management & financial insights on autopilot](https://www.fenerum.com/en-DK/index.md) Pages in this section: - [Annual Recurring Revenue (ARR): Meaning & How to Calculate](https://www.fenerum.com/en-DK/dictionary/arr.md): Annual Recurring Revenue (ARR) is a key metric in the world of SaaS. It measures the revenue a company expects to receive from its customers on an annual basis. - [Cash Flow: A guide to Analysis, Forecasting & Free Cash Flow](https://www.fenerum.com/en-DK/dictionary/cash-flow.md): What is cash flow? How to use tools like cash flow analysis, forecasting, and discounted cash flow models. Learn about free cash flow and Excel templates. - [Customer Lifetime Value: CLV formular and how to calculate](https://www.fenerum.com/en-DK/dictionary/clv.md): Customer Lifetime Value (CLV) measures the total revenue a company can expect from a customer. Learn CLV formular and how to calculate customer lifetime value. - [Monthly Recurring Revenue (MRR): Meaning & How to Calculate](https://www.fenerum.com/en-DK/dictionary/mrr.md): Monthly Recurring Revenue (MRR) is a critical SaaS metric for businesses operating under a subscription model, particularly in Software as a Service (SaaS) - [What is a subscription? The subscription-based business model](https://www.fenerum.com/en-DK/dictionary/subscription.md): The subscription business model is widely used in software as a service (SaaS) and other industries. read about subscriptions, subscription management and more. - [What is an ERP System? Benefits and meaning of an ERP](https://www.fenerum.com/en-DK/dictionary/erp-system.md): What is an ERP-system? its core benefits, and how it helps businesses streamline operations. Learn when SaaS companies should adopt ERP systems for growth. - [What is ARPU? Average Revenue Per User meaning & calculation](https://www.fenerum.com/en-DK/dictionary/arpu.md): ARPU, or Average Revenue Per User, is a key SaaS metric. Learn the ARPU meaning, how to calculate ARPU, and why it matters for SaaS companies. - [What is Burn Rate? Burn Rate Meaning, Formula & Chart](https://www.fenerum.com/en-DK/dictionary/burn-rate.md): Burn rate is a key SaaS metric. Learn the burn rate meaning, burn rate formula, how to calculate burn rate, and why cash burn rate matters for SaaS companies. - [What is CAC (Customer Acquisition Cost)? Definition & calculation](https://www.fenerum.com/en-DK/dictionary/cac.md): CAC (Customer Acquisition Cost) is a crucial metric in SaaS and subscription-based businesses. Learn about SaaS CAC and how to calculate CAC and LTV/CAC ratio. - [What is CAPEX? Capital Expenditure meaning & calculation](https://www.fenerum.com/en-DK/dictionary/capex.md): CAPEX, or capital expenditure, is a crucial financial metric for businesses. Learn the capex meaning, how to calculate CAPEX, and its importance in SaaS. - [What is Churn? Meaning and How to Calculate Churn Rate](https://www.fenerum.com/en-DK/dictionary/churn-rate.md): Churn means losing customers or subscribers from your service. Learn how to calculate churn rate, why churn is important in SaaS, and how to reduce churn. - [What is Dunning? Dunning process meaning & Dunning software](https://www.fenerum.com/en-DK/dictionary/dunning.md): Dunning is the process of communicating with customers to collect overdue payments. Learn about the Dunning process, Dunning software, and Dunning SaaS solutions. - [What is e-invoicing, and how do electronic invoices work?](https://www.fenerum.com/en-DK/dictionary/e-invoicing.md): E-invoicing is the digital exchange of invoices, automating the process, reducing errors and costs, and increasing efficiency. - [What is EBITDA? Meaning and How to Calculate It](https://www.fenerum.com/en-DK/dictionary/ebitda.md): EBITDA is an important KPI in the SaaS world. It provides a clear indication of a company's operating profitability without the impact of accounting differences. - [What is Freemium? Meaning and Business Model Explained](https://www.fenerum.com/en-DK/dictionary/freemium.md): Freemium is a business model that offers a free basic version of a product with optional paid upgrades. Learn how the freemium business model works and why it's popular in SaaS. - [What is GRR? Gross Revenue Retention meaning & calculation](https://www.fenerum.com/en-DK/dictionary/grr.md): GRR, or Gross Revenue Retention, is a crucial SaaS metric. Learn the GRR meaning, how to calculate GRR, and its importance in SaaS. - [What is NPS? Net Promoter Score meaning & calculation](https://www.fenerum.com/en-DK/dictionary/nps.md): NPS, or Net Promoter Score, is a key customer loyalty metric. Learn the NPS meaning, how to calculate NPS, and why it matters for SaaS companies. - [What is NRR? Net Revenue Retention meaning & calculation](https://www.fenerum.com/en-DK/dictionary/nrr.md): NRR, or Net Revenue Retention, is a vital SaaS metric. Learn the NRR meaning, how to calculate NRR, and why it matters for SaaS companies. - [What is OPEX? Operating Expenditure meaning & examples](https://www.fenerum.com/en-DK/dictionary/opex.md): OPEX, or operating expenditure, represents the ongoing costs of running a business. Learn the OPEX meaning, difference between CAPEX and OPEX, and why both matter for SaaS. - [What is Retention? How to Calculate and Improve Retention Rate](https://www.fenerum.com/en-DK/dictionary/retention.md): Retention is a key SaaS metric that reflects a company's ability to keep customers. Discover how to calculate, improve, and analyze customer retention rate. - [What is Revenue Recognition? Guide to Deferred Revenue](https://www.fenerum.com/en-DK/dictionary/revenue-recognition.md): Revenue Recognition, or 'Periodisering' in Danish, distributes revenue and expenses over time. Automatically post deferred revenue in e-conomic with Fenerum. - [What is Software as a Service (SaaS): Meaning and Definition](https://www.fenerum.com/en-DK/dictionary/saas.md): SaaS means 'Software as a Service' and is a cloud-based service accessible on the internet. Learn the benefits of a SaaS company compared with IaaS and PaaS. - [What is the Rule of 40? Definition & how to calculate Rule of 40](https://www.fenerum.com/en-DK/dictionary/rule-of-40.md): The Rule of 40 is a key metric for determining SaaS health and success. Learn how to calculate it, why it matters, and try our free benchmark calculator. Full site index: https://www.fenerum.com/llms.txt