30 Startup Terms Every First-Time Founder Should Actually Know
By Priyanshu · Tier 1 · 2026-09-14
Why this glossary exists
Fundraising and startup culture come with their own language. This glossary defines the 30 terms first-time founders hit most often, in plain English — no jargon required. Bookmark it and skim before your next investor call.
Idea, product and customers
• MVP (Minimum Viable Product) — The simplest version of your product that still delivers core value, built to test demand quickly with the least effort.
• Product-Market Fit (PMF) — The point where your product satisfies strong market demand — customers actively want it, use it and tell others.
• ICP (Ideal Customer Profile) — A precise description of the customer your product serves best, used to focus marketing and sales.
• Value Proposition — A clear statement of the specific benefit you deliver and why it's better than the alternatives.
• Pivot — A meaningful change in strategy — product, market or model — made in response to what validation and data reveal.
• Customer Discovery — The process of talking to potential users to understand their real problems before building a solution.
Fundraising and equity
• Pre-seed — The earliest funding stage, usually to validate an idea and build a prototype, often from founders, friends or angels.
• Seed — The first meaningful round of outside capital, typically to reach product-market fit and early traction.
• Series A / B / C — Progressively larger institutional rounds that fund scaling — Series A for growth engine, B and C for expansion.
• Angel Investor — An individual who invests their own money into early-stage startups, often adding mentorship and connections.
• Venture Capital (VC) — A fund that invests pooled money into high-growth startups in exchange for equity, expecting large returns.
• SAFE (Simple Agreement for Future Equity) — A popular early-stage instrument that lets investors put in money now for equity later, without setting a valuation today.
• Convertible Note — A short-term loan that converts into equity at a later round, usually with a discount or valuation cap.
• Valuation — The estimated worth of your company — 'pre-money' before an investment, 'post-money' after it.
• Cap Table — A record of who owns what in your company — founders, investors and option holders — and their ownership percentages.
• Dilution — The reduction in existing owners' percentage stake when new shares are issued to new investors.
• Term Sheet — A non-binding document outlining the key terms of an investment before final legal agreements are drawn up.
• Due Diligence — The investigation an investor runs on your business, team and numbers before committing capital.
Metrics and growth
• TAM / SAM / SOM — Total Addressable Market, Serviceable Available Market and Serviceable Obtainable Market — the full, reachable and realistically capturable slices of your market.
• CAC (Customer Acquisition Cost) — The average cost to win one new paying customer, including marketing and sales spend.
• LTV (Lifetime Value) — The total revenue you expect from a customer over the whole relationship. A healthy LTV comfortably exceeds CAC.
• MRR / ARR — Monthly and Annual Recurring Revenue — the predictable subscription revenue a business earns each month or year.
• Churn — The rate at which customers stop paying or using your product over a given period.
• Burn Rate — How fast you spend cash each month before becoming profitable.
• Runway — How many months of operation you have left at your current burn rate before you run out of cash.
• Unit Economics — The revenue and costs tied to a single unit — one customer or one sale — that show whether the model can be profitable.
• GTM (Go-To-Market) — Your plan for how you'll reach customers and generate revenue — channels, pricing, positioning and sales motion.
Ecosystem and milestones
• Bootstrapping — Building a startup using personal savings and revenue instead of outside investment.
• Accelerator / Incubator — Programmes that support early startups with mentorship, resources and sometimes funding, usually in cohorts.
• Unicorn — A privately held startup valued at over $1 billion.
Frequently asked questions
Q: What is the difference between a SAFE and a convertible note?
A: Both let investors fund you now for equity later. A convertible note is debt with interest and a maturity date; a SAFE is not a loan and has no interest or maturity — making it simpler and founder-friendly.
Q: What is a good LTV to CAC ratio?
A: A common benchmark is an LTV at least three times your CAC, meaning each customer returns far more than it costs to acquire them.
Q: What does 'runway' mean for a startup?
A: Runway is the number of months your startup can keep operating at its current spending rate before it runs out of cash.
Q: What is product-market fit?
A: Product-market fit is the point where your product meets strong, real demand — customers want it, keep using it and recommend it.