Vocab Builder

What problem does it solve?

Vocab Builder provides a repeatable, automated way to practice and assess vocabulary knowledge by delivering randomized multiple-choice definition questions with immediate feedback and session-level tracking, eliminating manual flashcard creation and ad-hoc testing.

Core Features & Use Cases

• Five difficulty levels & large corpus: 3,964 curated words across easy → hardest to match learner levels.
• Deterministic server API: GET /vocab-api/question returns a random question without answer fields and supports excluding seen IDs; POST /vocab-api/check validates answers server-side.
• Responsive frontend behavior: Keyboard shortcuts (1-4 or A-D), timer per question, auto-advance on correct answers, running results table, and a final summary with timings and averages.
• Use Cases: Self-study practice sessions, classroom quick assessments, timed drills for language learners, and integration into learning platforms for randomized quiz delivery.

Quick Start

Start a 20-question medium-difficulty quiz, answer each multiple-choice definition using 1-4 or A-D, and review the running results table to track score and response times.