There are about 7,000 languages spoken on Earth today, but roughly half are endangered.

The German word 'Weltschmerz' means the pain of comparing the world as it is with how it should be.

English has the most borrowed words of any language — absorbing vocabulary from over 350 languages.

The word 'OK' may be the most recognized word in the world — it's understood in virtually every language.

The Sapir-Whorf hypothesis proposes that language structure influences thought — strong and weak versions are debated.

Sanskrit has the most perfect grammatical structure ever analyzed by linguists.

The average English speaker uses only about 20,000 words actively — but recognizes 40,000–50,000.

Txting and internet slang follow consistent grammatical patterns — linguists study them as natural language change.

The average educated English speaker knows about 40,000–50,000 words but uses only 5,000–10,000 in everyday speech.