The dot over the lowercase letter 'i' is called a tittle.

The word 'salary' derives from 'sal' (salt) — Roman soldiers were paid a salt allowance.

The language with the most native speakers is Mandarin Chinese, followed by Spanish and English.

The fear of the number 13 is called triskaidekaphobia — many buildings skip the 13th floor entirely.

The phrase 'rule of thumb' has multiple possible origins — none involving domestic violence, despite popular myth.

The @ symbol is called 'arroba' in Spanish and Portuguese, meaning a unit of weight.

The symbol '#' has many names: hash, pound, number sign, octothorpe — 'octothorpe' was coined as a joke by a Bell Labs engineer.

The Sapir-Whorf hypothesis proposes language structure influences how we perceive the world.

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