The startup launch & growth glossary

Plain-English definitions of the terms founders and indie hackers actually run into when launching and growing a product.

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CAC Payback Period

Metrics

CAC Payback Period is the number of months it takes for the gross margin generated by a new customer to cover the cost of acquiring them.

CAC vs LTV Ratio

Metrics

The CAC vs LTV ratio compares what it costs to acquire a customer against the total revenue that customer generates, revealing whether a business model can scale profitably.

Churn Rate

Metrics

Churn rate is the percentage of customers or revenue a business loses over a specific period, typically measured monthly or annually.

Cohort Retention

Metrics

Cohort retention measures the percentage of users from a specific signup group who remain active at set time intervals after joining.

Cold Email Sequence

Channels

A cold email sequence is a series of scheduled, automated emails sent to prospects who have not opted in, designed to introduce a product and prompt a reply.

Cold Outreach

Channels

Cold outreach is contacting potential customers, partners, or hires with no prior relationship, usually through email, LinkedIn, or DMs, to start a business conversation.

Cold Start Problem

Growth

The cold start problem is the challenge a new product or marketplace faces in attracting enough initial users, content, or supply for it to deliver value before network effects take hold.

Community-Led Growth

Growth

Community-led growth is a strategy in which a brand builds an engaged community that fuels product awareness, feedback, and adoption before or alongside a formal launch.

Customer Acquisition Cost (CAC)

Metrics

Customer Acquisition Cost (CAC) is the average amount a company spends on sales and marketing to acquire one new paying customer.

Customer Lifetime Value (LTV)

Metrics

Customer Lifetime Value (LTV) is the total revenue a business expects to earn from a single customer over the entire span of their relationship.

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Landing Page Conversion Rate

Metrics

Landing page conversion rate is the percentage of visitors who complete a desired action on a page, such as signing up, joining a waitlist, or starting a trial.

Launch Assets

Launch

Launch assets are the complete set of prepared materials, such as screenshots, taglines, GIFs, and copy, that a team needs ready before executing a coordinated product launch.

Launch Cadence

Launch

Launch cadence is the planned rhythm and sequence of announcements, updates, and channel pushes a founder uses to build and sustain attention around a product release.

Launch Day Checklist

Launch

A launch day checklist is the prepared sequence of tasks, assets, and channel posts a founder executes on the day a product goes live to maximize visibility and momentum.

Launch Directory

Channels

A launch directory is a curated website that lists new products and startups to help them gain early visibility, referral traffic, and backlinks.

Launch Directory Submission

Channels

Launch directory submission is the practice of listing a new product on curated startup and tool directories to gain backlinks, referral traffic, and early visibility.

Launch Karma

Channels

Launch Karma is the accumulated trust and credibility a founder earns on a community platform through genuine, non-promotional participation before ever mentioning their own product.

Launch Multiplier

Launch

A launch multiplier is a person, community, or channel that shares or endorses your launch and expands its reach well beyond your own audience.

Launch Teaser

Launch

A launch teaser is a short pre-launch video, image, or post that hints at an upcoming product to build curiosity and anticipation before it goes live.

Launch Trailer

Launch

A launch trailer is a short, high-energy video (usually 30 to 90 seconds) that shows a product's core value and key features to hook viewers in the first few seconds on platforms like Product Hunt, Twitter/X, or YouTube.

Launch Window

Launch

A launch window is the specific, deliberately chosen time period when a startup makes its public debut to capture maximum attention and momentum.

Lead Magnet

Marketing

A lead magnet is a free resource, such as a template, checklist, or ebook, offered in exchange for a prospect's contact information.

Listicle

AI Search

A listicle is an article structured as a numbered or bulleted list, such as "10 tools to try in 2026," that uses the list format to organize its points.

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Payback Period

Metrics

Payback period is the number of months it takes for the gross margin a customer generates to fully repay the cost of acquiring them.

Pirate Metrics (AARRR)

Metrics

Pirate Metrics (AARRR) is a growth framework that segments the customer lifecycle into five stages, Acquisition, Activation, Retention, Referral, and Revenue, so founders can measure what's working and what's broken.

Positioning Statement

Marketing

A positioning statement is an internal, one- to two-sentence articulation of who a product is for, what category it competes in, and why it is uniquely better than the alternatives.

Pre-Launch Landing Page

Launch

A pre-launch landing page is a single web page published before a product ships that pitches the value proposition and collects emails to build an audience ahead of launch day.

Product Hunt Launch

Channels

A Product Hunt Launch is submitting a product to Product Hunt for a 24-hour feature window to earn visibility, upvotes, and early feedback from its maker and early-adopter community.

Product-Led Growth (PLG)

Growth

Product-Led Growth (PLG) is a go-to-market strategy in which the product itself, usually via free trials or freemium plans, drives customer acquisition, conversion, and expansion.

Product-Market Fit (PMF)

Product

Product-market fit is the state where a product satisfies strong, real market demand, shown by organic growth, low churn, and customers pulling the product rather than being pushed toward it.

Product Qualified Lead (PQL)

Marketing

A Product Qualified Lead (PQL) is a user who has reached a meaningful value milestone inside a product, usually through free trial or freemium usage, making them a strong candidate to convert to paying.

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Sales Qualified Lead (SQL)

Marketing

A Sales Qualified Lead (SQL) is a prospect that sales has vetted for both intent and fit, and deemed ready for direct outreach or a sales conversation.

Search Engine Optimization (SEO)

Growth

SEO is the practice of shaping a website's content, structure, and authority so search engines rank it higher for relevant queries, generating free organic traffic.

Serviceable Available Market (SAM)

Fundraising

SAM is the portion of the total market a startup can realistically reach and serve with its current product, geography, and go-to-market channels.

Show HN

Channels

Show HN is a Hacker News post category where founders and makers share something they built directly with the community, inviting comments, critique, and technical feedback.

Smoke Test

Launch

A smoke test is a quick, low-cost experiment, like a landing page or ad campaign, used to gauge real demand before you build a product.

Soft Launch

Launch

A soft launch is a limited, low-visibility release of a product to a small audience or single market, used to test and fix issues before the full public launch.

Subreddit Etiquette

Channels

Subreddit etiquette is the set of written rules and unwritten norms specific to a Reddit community that founders must follow when promoting a product, or risk removal, downvotes, or a ban.

Sunk Cost Fallacy

Growth

The sunk cost fallacy is the tendency to keep pouring time or money into a failing product, feature, or strategy because of past investment rather than future potential.

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