B2B Sales Dictionary — 30 Terms You Need to Know | DataSend.ai

Introduction: When Everyone Speaks in Acronyms You Don't Understand

You step into the world of B2B sales and suddenly hear ICP, MQL, SQL, CAC, pipeline, outbound, churn, and twenty other acronyms. Most articles use them as if everyone knows them — and if you don’t, you feel lost.

This article is a simple dictionary. Thirty terms from B2B sales that will help you understand any article, conversation, or tool in this field. No unnecessary jargon, just practical examples.

Basic Terms

B2B (business-to-business) — Selling to companies, not consumers. If you create websites for construction companies, you are doing B2B. If you sell t-shirts to customers, you are doing B2C.

B2C (business-to-consumer) — Selling directly to consumers. E-commerce, restaurants, hair salons.

Lead — A potential customer. A company or person who might be interested in your services, but you haven't communicated with them yet.

Prospect — A lead with whom you have already started communicating. The company has responded to your email or expressed interest.

Qualified lead — A prospect you know has the budget, need, and authority to decide. Not every lead is qualified.

Deal — A specific business opportunity with an estimated value and the stage it is in.

Client Acquisition

Outbound — An active approach. You reach out to companies — via email, phone, or LinkedIn. You don’t wait for them to find you.

Inbound — A passive approach. Clients come to you — through search, content, ads, or referrals.

Cold email — A personalized email sent to a company you haven’t communicated with before. Not spam — a relevant message with a specific offer.

Cold calling — The same, but by phone.

Outreach — A general term for actively contacting potential clients through any channel.

Follow-up — A reminder sent after the first email if the recipient hasn’t responded. According to data from outreach campaigns, 42% of responses come from follow-ups.

Sequence — A series of scheduled emails (first email + follow-ups) that are sent automatically at defined intervals.

Warmup — The process of building the reputation of an email account before launching a campaign. The system automatically sends and receives emails so providers like Gmail perceive the account as trustworthy.

Targeting and Segmentation

ICP (Ideal Customer Profile) — A precise description of the company that is your best customer — industry, size, revenue, region, needs. The more precise the ICP, the more effective the outreach.

Persona — A description of a specific person in the company you are targeting. Not the company, but the person — their role, problems, motivations. For example, "marketing manager in an e-commerce with revenue over €500,000."

Segmentation — Dividing the market or database into smaller groups based on common characteristics — industry, size, region. Allows for more relevant outreach.

TAM (Total Addressable Market) — The total market. How many companies in the world/in the region could theoretically buy your service.

Firmographic data — Data about the company — industry, number of employees, revenue, legal form, region. The B2B equivalent of demographic data.

Metrics and Numbers

Open rate — The percentage of recipients who opened your email. A low open rate usually indicates a weak email subject line or deliverability issues.

Reply rate — The percentage of recipients who replied. For cold emails, the average is 3–5%, top performers achieve 10–15%.

Bounce rate — The percentage of emails that were not delivered. A high bounce rate damages your domain's reputation. A healthy value is below 3–5%.

Conversion rate — The percentage of leads that converted into customers. This is tracked at every stage — from contacted to responses, from responses to meetings, from meetings to deals.

CAC (Customer Acquisition Cost) — The cost of acquiring one customer. If you spend €1,000 on a campaign and acquire 5 clients, your CAC is €200.

LTV (Lifetime Value) — The total value of a customer over the entire duration of the relationship. A client on retainer for €500/month for 2 years has an LTV of €12,000.

Churn — The rate of customer attrition. If you have 20 clients and 2 leave in a month, your churn is 10%.

Process and Tools

Pipeline — An overview of all your active deals in various stages — from the first contact to closing. It allows you to see how many deals you have open and what revenue you can expect.

CRM (Customer Relationship Management) — A system for managing customer relationships. It tracks contacts, communication, deal stages, and notes.

Sales funnel — A model that describes the customer journey from the first contact to purchase. Many leads at the top, few customers at the bottom — hence the funnel.

Unibox — A centralized inbox where you can see responses from all email accounts and campaigns in one place. Instead of switching between five inboxes, you have one overview.

Enrichment — Adding missing data to contacts — email, phone, position, industry. You have the company name, you want the contact person.

Retainer — Monthly collaboration for a fixed price. The client pays regularly for an agreed scope of services — as opposed to a one-time project.

Scope creep — Gradual expansion of the project scope without changing the price. The client adds "one more thing" and the project grows beyond the original amount.

How to Use These Terms in Practice

Knowing the terms is one thing. Knowing how to use them is another. Here’s an example of how they fit together in a real process:

First, you define your ICP — for example, e-commerce businesses in the Czech Republic and Slovakia with revenue over €500,000. Then you find companies that match this profile. At DataSend.ai, filters by industry, region, revenue, and company size serve this purpose.

You send these companies a cold email. If they don’t respond, the system automatically sends follow-ups in a defined sequence. You monitor open rates and reply rates to know what works.

Responses come into Unibox, where you sort them by interest. Those who show interest are moved to the pipeline as qualified leads. From there, you move them through the stages until a deal is closed.

After closing, you track LTV and try to turn a one-time project into a retainer — reducing the need to constantly acquire new clients and lowering your CAC.

This entire process can be managed on one platform. At DataSend.ai, you have a database to define your ICP and find companies, outreach campaigns, follow-ups, Unibox for sorting responses, and a pipeline to track deals.

Conclusion: Jargon is Not a Barrier, It's an Abbreviation

B2B jargon may seem intimidating, but in reality, it’s just an abbreviation for things you are doing anyway. ICP is "I know who I’m selling to." Follow-up is "I’ll remind them." Pipeline is "I know where each deal stands."

Once you know the terms, they stop being a barrier and become a tool — helping you think more systematically and communicate more precisely.

Save this article and refer back to it when you encounter a term. In a few weeks, you’ll be using them naturally.

Want the entire B2B process in one place? DataSend.ai — a database of companies, email campaigns with AI personalization, Unibox, and pipeline. From ICP to closed deal.

Try DataSend.ai for free →