The SaaS industry has invented its own vocabulary over the past 20 years and dozens of acronyms – ICP, TAM, GTM, CAC, and TCV, just to name a few. Venture capital investors have developed hundreds of different metrics to measure growth (e.g., ARR, viral coefficient), efficiency (e.g., CAC payback period, magic number), and retention (e.g., quick ratio, NRR). In this glossary, we will define all the key terms used by SaaS go-to-market organizations, including not just marketing, but also sales, customer success, product management, and finance keywords as well. The Bantrr glossary is a work-in-progress expected to be completed later in the year, but below are the key terms defined so far.