Prefix, Suffix & Root Words vs Smart CDL

Master Root Words, Prefixes & Suffixes — Build a Bigger Vocabulary Fast Unlock the building blocks of the English language. Prefix, Suffix & Root Words is the all-in-one vocabulary builder that teaches you Latin root words, Greek root words, prefixes, and suffixes — each with clear meanings, origins, and real-word examples. Learn how words are built, decode words you've never seen before, and prepare for the SAT, GRE, ACT, TOEFL, and other exams with confidence. A root word is the most basic form of a word that can't be divided into smaller meaningful parts. By adding a prefix (at the beginning) or a suffix (at the end), you create whole new words. Learn the roots once, and you'll understand thousands of English words instantly. 486+ Latin & Greek Roots Browse a complete, searchable dictionary of root words with meanings, language of origin, and example words — filter by letter or search instantly. Prefixes, Suffixes & Root Lists Dedicated, searchable lists of common prefixes and suffixes with definitions and examples — everything in one place. Flashcards Study Mode Flip through roots, swipe to mark what you know, and track your mastery over time with a daily study streak. Vocabulary Quiz Test yourself with mixed multiple-choice questions and review your quiz history to see your progress. Themed Collections Explore roots grouped by topic — Numbers, Body & Health, Time, Movement, Light & Color, and more. Word of the Day Learn a new root every day and build a lasting study habit. Learn the Theory Easy-to-read guides: What is a root word? Root words vs. base words, affixes explained, Greek vs. Latin roots, how to decode unfamiliar words, using roots on tests, and where English words come from. Why you'll love it • Perfect for students, teachers, ESL learners, writers, and word lovers • Great prep for SAT, GRE, ACT, TOEFL, IELTS & spelling tests • Fast search and clean, distraction-free design • Light & dark mode • Works fully offline — no account needed Start learning the roots of English today and watch your vocabulary grow.

SMART CDL — CDL PREP BUILT FOR YOUR STATE Study for your commercial driver license with practice questions written for your state — not generic content recycled across all 50 states. Pick your state, CDL class and endorsements, and the app shows only the material you actually need. TRY IT FREE No account. No sign-up. No card. Before you pay for anything, you get: • The official CDL handbook for any state — downloadable for offline reading • The Introduction study cards • Both CDL Skills Test topics • Part 1 of every General Knowledge quiz — 60 practice questions STUDY CARDS Plain-language cards covering what your state's manual expects you to know: • Vehicle inspection • Safe driving • Transporting cargo • Air brakes • Combination vehicles • Every endorsement PRACTICE QUIZZES More than 1,100 questions, split into short 15-question parts so you can study in the time you actually have. Every part is scored, and your place is saved — stop mid-part and pick up where you left off. FULL-LENGTH PRACTICE EXAMS Built the way the real tests are: no feedback between questions, and 80% to pass — the same threshold your state uses. • General Knowledge — 50 questions sampled across every subtopic • Endorsement exams — 20 to 30 questions each ENDORSEMENTS Doubles and Triples • Hazardous Materials • Passengers • School Bus • Tank Vehicles Study cards, quizzes, and a full-length practice exam for each. THE OFFICIAL HANDBOOK — ALWAYS FREE Download your state's CDL manual and read it in the app, with a table of contents and your place kept between sessions. WORKS OFFLINE Apart from downloading the handbook, everything works with no connection. Study in the yard, in the cab, or anywhere with no signal. YOUR DATA STAYS ON YOUR PHONE No account. No ads. No tracking. Your name, your state, and your progress are stored on your device and never sent anywhere. PAY ONCE No subscription. Unlock everything, or just the one topic you need. Purchases are permanent and restore free of charge on any device signed in to the same Google account. OFFICIAL SOURCES Each state's CDL manual is downloaded directly from that state's own licensing agency — nothing is re-hosted or altered. Every official source, for all 50 states and for the federal regulations, is listed here: https://qaresearch10.github.io/smartcdl-site/sources.html IMPORTANT Smart CDL is an independent study aid. It is not a government app and does not represent any government entity. It is not affiliated with, endorsed by, or a substitute for any state driver licensing agency, the Federal Motor Carrier Safety Administration, or any other government authority. Always verify current requirements with your state licensing agency before taking a test.