Smart dictionary
Personalized explanations built around the learner’s level, first language, and interests.
Product facts
About DynaSaurus
DynaSaurus (词灵龙) is Kee Lee’s personalized AI language-learning web app. It adapts vocabulary explanations, translation, grammar feedback, and IELTS speaking practice to a learner’s CEFR level, first language, and interests.
DynaSaurus（词灵龙）是由 Kee Lee 创建的个性化 AI 语言学习网页应用。它会根据学习者的 CEFR 等级、母语和兴趣，调整词汇解释、翻译、语法反馈与雅思口语练习。
Quick facts
- Creator
- Kee Lee · Founder & IELTS Coach
- Format
- Web application
- Core modules
- 4
- Learning levels
- A1–C2
- Language settings
- 11
- Free access
- 5 lookups per day
What it is designed to do
Translation
Language and cross-cultural guidance designed to explain why an expression works.
Grammar feedback
Corrections that explain the issue instead of returning only a rewritten sentence.
IELTS speaking
Practice prompts and structured support for developing speaking answers.
Scope and limitations
DynaSaurus provides AI-generated learning support. AI output can be incomplete or wrong, so learners should verify high-stakes, specialist, legal, medical, or exam-critical information with an appropriate source.
DynaSaurus does not issue official IELTS scores and is not a replacement for an accredited examiner or a teacher. No product-specific outcome study, rating, or customer-result claim is published on this site.
The interface and learning profiles support 11 language settings. This describes interface and profile choices; it is not a claim that every speech, media, or instructional feature has identical coverage in every language.
Creator and product identity
DynaSaurus is created by Kee Lee. DynaSaurus and 词灵龙 are names for this product. DynamOS is a separate wider platform name and is not another name for DynaSaurus.
Facts last reviewed: 2026-09-25