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Some compound words (like bus rapid transit, dog whistle, or identity theft) don’t appear on the drop-down list when you type them in the search bar. For best results with compound words, place a quotation mark before the compound word in the search window.

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quotation mark

Either of a pair of punctuation marks used primarily to mark the beginning and end of a passage attributed to another and repeated word for word, but also to indicate meanings or glosses and to indicate the unusual or dubious status of a word. They appear in the form of double quotation marks (" ") and single quotation marks (' '). Single quotation marks are usually reserved for setting off a quotation within another quotation.

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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Indo-European & Semitic Roots Appendices

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