Sign languages are complete natural languages — they are not universal and vary by country.

Sign languages are complete, natural languages with their own grammar — they are not universal and vary by country.

English has the largest vocabulary of any language — the Oxford English Dictionary contains over 600,000 words.

The German word 'Weltschmerz' means the pain caused by the gap between the world as it is and as it should be.

Some languages mark grammatical distinctions English lacks — such as whether the speaker knows something directly or by report.

The word 'quiz' supposedly originated as a bet in Dublin in 1791 — its true origin remains unknown.

The Hawaiian alphabet has only 13 letters.

The shortest grammatically complete sentence in English is 'Go.' — subject implied.

There are approximately 7,000 languages spoken in the world — about half are expected to disappear by the end of the century.