Palindromes read the same forward and backward. Learn how they work in words, numbers, and phrases, with quick examples.

Flammable and inflammable both mean easy to catch fire. Here is why they match, and why many safety labels now prefer flammable.

Apron began as napron. When “a napron” was reheard as “an apron”, the word boundary shifted and the newer form became standard.

Tmesis is the splitting of a word with another word for emphasis, as in abso-bloody-lutely. Here is how it works in English.