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Contemporary English lookup with vocabulary exercises

Explore historical colour names through swatches and natural examples.

AI speaking practice for English and 35+ languages

AI tutor for English speaking practice with instant feedback

Explore vocabulary and concordances in structured corpora

AI language tutor with lessons that adapt to you

Inspect word, syllable and vocabulary statistics

Translate while reading and review the words afterward.

Learn useful phrases by listening to real speakers.

Arabic practice with dialogues, quizzes and review.

Short vocabulary games for daily language practice.

Pronunciation practice with image-based vocabulary review.

Listening lessons with transcripts, vocabulary and quizzes.

Official GRE practice tests, vocabulary resources, maths review and test-maker guidance.

Search the Medical Subject Headings vocabulary

Language phrases, native-speaker audio and vocabulary tools.

Vocabulary review connected to everyday situations.

A beginner's guide to Russian sounds, vocabulary and grammar.

Phonics and vocabulary practice with sound-based lessons and quizzes.

IELTS skill guides, vocabulary, example tasks, videos and study materials.

A restrained set of interface symbols as SVG files and an icon font.

Online courses, vocabulary review and live conversation.

Build domain-specific languages with a projectional editor, language tools, and code generators.

Free short language lessons without an account.