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How to use Understanding

A friendly tour of the site. Learn how things are organized, what every feature does, and follow short tutorials for the most useful flows.

ExplanationsTutorials

What is Understanding?

Understanding is a multilingual glossary that helps you learn hard things in simple words. You can explore for free, search across every topic, and — if you create a free account — track what you've learned, keep a daily streak, and unlock premium topics.

Learn for free

Most terms are open to everyone. No account needed to browse, search or learn.

Made by humans

Every term is written and reviewed for clarity. We prefer plain words and real-world examples over jargon.

Multilingual

Switch between English and Spanish at any time. The whole site adapts instantly.

Explanations

How the site is organized

Understanding is built around three nested ideas. Once you see the pattern, everything else clicks into place.

  1. 1

    Topics

    A topic is a self-contained glossary, like “Technology” or “Spanish Grammar”. Each topic has its own landing page, its own dictionary, and its own set of levels.

  2. 2

    Levels

    Inside a topic, terms are grouped into levels by difficulty or theme — for example Fundamentals, Modern Tech, Security & Infrastructure. Levels keep things bite-sized.

  3. 3

    Terms

    Terms are the actual glossary entries. Each term has a short definition, real-world examples, analogies, side-by-side comparisons, and a list of related terms.

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Tech terms, explained simply.

A friendly guide to understanding technology. No jargon, no complexity, just clear explanations with real-world examples.

Start learningBrowse all terms

35 terms across 5 categories

🌐Internet
🛰️API
☁️Cloud
🤖AI
🗂️Database
🎨Frontend

Anatomy of a term page

Every term follows the same predictable shape, so you always know where to look. Hover the labels on the mockup to see what each section does.

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Fundamentals

Internet

[ From inter- ("between") + network ("net" + "work"). ]

Internet (Global Network)

It is a giant highway system that connects computers all over the world so they can talk to each other and share things.

Real-world examples

  • • Cargar un video en YouTube
  • • Enviar un mensaje de WhatsApp

Related terms

Wi-FiWebServerCloud
Mark as learned

  • Derivation

    Where the word comes from. A short bracketed line above the title, and a longer note further down.

  • What it is

    The clearest one-paragraph definition we could write. If you only have time for one section, this is the one.

  • In simple words

    The same idea explained even more plainly — usually with the same metaphor you would use to explain it to a friend.

  • Real-world examples

    Concrete things you have probably seen or used, mapped to the concept.

  • Analogies

    Comparisons to everyday objects so the concept sticks.

  • Comparisons

    Side-by-side tables that explain how the term differs from similar-sounding ones (e.g. Internet vs Web).

  • Why it matters

    A short paragraph on why this concept is worth knowing in 2026.

  • Related terms

    Other entries that connect to this one — perfect for following a learning thread.

Everything Understanding can do

A quick map of the features you will find around the site. Some are free for everyone, others light up once you sign in.

Global search

Press ⌘K (Ctrl+K on Windows) from anywhere to search across all topics and term sections.

Dictionary view

An A–Z list of every term in a topic, with a Basic / Expanded toggle for short or full definitions.

Language switcher

Flip the whole site between English and Spanish from the top-right corner.

Light & dark mode

Pick the theme that is easier on your eyes — it remembers your choice across visits.

PDF export

Save any term as a clean PDF you can print or share. Available to signed-in users.

Comments

Leave a note on a term — a question, a correction, or a better analogy. Visible to admins for review.

Mark as learned

Tap the check button on a term to record that you learned it. Powers your overall progress.

Streaks & progress

Learn at least one new term a day to build a streak. See your activity heatmap and percent-complete by topic.

Premium topics

Some topics (like Spanish Grammar) are unlocked via a purchase. The current plan and price are shown on the topic’s purchase card.

Donate

If Understanding has helped you, you can leave a tip from the footer. It funds new topics and translations.

Tutorials

Step-by-step tutorials

Short walk-throughs of the most common flows. Pick one and follow along on the live site — each step matches what you actually see.

  1. 1

    Explore and learn a new term

    You do not need an account to learn here. This is the basic flow for any visitor.

    1. 1Open the home page. You will see the search bar and a list of available topics.
    2. 2Pick a topic — for example “Technology” — to land on its guide page.
    3. 3Use the left navigation to open a level, then click any term inside it.
    4. 4Start with the “What it is” section, then scroll for examples, analogies and comparisons until it clicks.
    TipPress ⌘K (Ctrl+K) at any time to jump straight to a term by name.
    localhost:3000/
    Understand any topic in simple words

    Made by humans.
    For real understanding.

    In a world of AI answers and complicated sources, we make things simple, clear, and truly understandable.

    Internet⌘K

    376 terms · 2 topics

    Explore topics

    Technology

    46 terms

    Spanish Grammar

    87 terms

  2. 2

    Create a free account

    An account lets you save progress, export PDFs, and unlock purchased topics on any device.

    1. 1Click the person icon in the top-right of the header.
    2. 2In the sign-up panel, enter your name, email and an optional password.
    3. 3Press “Sign up”. You are logged in immediately and the icon turns into your initial.
    4. 4You can also choose “Send a login link instead” if you prefer a passwordless flow.
    TipA password is optional — magic-link login by email always works.
    localhost:3000/ · auth modal

    Create an account

    Sign up to save progress and export PDFs.

    Name

    Ada Lovelace

    Email

    ada@example.com

    Password (optional)

    ••••••••

    Send me a login link instead

    Already have an account? Log in

  3. 3

    Log in with a magic link

    No password? No problem. You can sign in with a one-time email link that expires in 15 minutes.

    1. 1Open the auth modal from the person icon and switch to “Log in”.
    2. 2Click “Send me a login link” at the bottom of the form.
    3. 3Type your email and press the button — check your inbox.
    4. 4Open the email and click the link to return signed-in.
    localhost:3000/ · auth modal

    Log in with email

    We'll send you a login link.

    Email

    ada@example.com

    The link expires in 15 minutes.

    Use a password

  4. 4

    Track your learning progress

    Each term has a “Mark as learned” button. Marked terms feed your streak and topic progress bars.

    1. 1On any term page, once you feel you got the idea, click the “Mark as learned” button at the bottom.
    2. 2Open the user menu and choose “My Progress”.
    3. 3You will see a streak counter, a last-28-days activity heatmap, and per-topic progress bars.
    4. 4Come back tomorrow and learn another term to extend your streak.
    TipMarking a term as learned also surfaces a quick reflection prompt — writing a sentence in your own words helps it stick.
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    Profile
    Order History
    My Progress

    My Progress

    zz

    Current streak

    5 days

    Best streak

    7 days

    Last 28 days

    Overall progress30%

    40 / 133

    Terms learned

    40

    Topics

    2

    Levels

    16

  5. 5

    Unlock a premium topic

    Premium topics require a purchase to open all of their content. Once unlocked, the terms become available to you on every device you sign in on.

    1. 1Open the premium topic (it shows a small gold star on the home page).
    2. 2Read the free preview at the top of the page.
    3. 3On any locked term, you will see the purchase card with the current plan and price.
    4. 4Press the purchase button. You will be sent to the checkout, then bounced back to the unlocked content.
    TipYour purchase shows up in Account → Order History the moment it completes.
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    Premium topic

    Spanish Grammar

    This topic requires a one-time purchase to access all its content.

    MX$59.00

    Pay once, use forever

    • Lifetime access
    • Access on every device
  6. 6

    View order history

    Every purchase is listed in your account, with date, currency, status and platform.

    1. 1Open the user menu (top-right) and pick “Orders”.
    2. 2You will see each topic you have purchased, with the status badge (Completed / Refunded).
    3. 3Click a topic name to jump back into it.
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    Profile
    Order History
    My Progress

    Order History

    Spanish Grammar

    Jan 19, 2026

    MX$0.00

    Completed

    Spanish Grammar

    Jan 19, 2026

    MX$0.00

    Completed
  7. 7

    Use the dictionary view

    When you want the full A–Z, switch from the guided layout to the dictionary.

    1. 1Inside any topic, click “Dictionary” in the left sidebar (or “Browse all terms” on the topic home).
    2. 2Toggle between Basic (just the short definition) and Expanded (full content).
    3. 3Use the A–Z navigation at the top to jump to a letter, or the filter to narrow within a letter.
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    Reference

    Dictionary

    All tech terms from A to Z, explained in simple words.

    BasicExpanded
    ABCDEFHILMPS

    A

    APIDevelopment

    API (Application Programming Interface)

    F

    FirewallSecurity

    Firewall (Network Security)

  8. 8

    Edit your profile

    Keep your display name in sync with what you would like Understanding to call you.

    1. 1Open the user menu and pick “Profile”.
    2. 2Click the pencil next to your name to edit it.
    3. 3Press “Save” — the new name appears in the header avatar and on comments you leave.
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    Profile
    Order History
    My Progress

    Profile

    S

    Sebastián Castro

    sebastian.c@example.com

    Edit

    Member since: January 15, 2026

Frequently asked questions

Ready to start learning?

Open the home page and search for any concept — or pick a topic and follow it level by level.

Go to the home pageOpen the dictionary