use-icon

HOW TO USE THE DICTIONARY

To look up an entry in The American Heritage Dictionary of the English Language, use the search window above. For best results, after typing in the word, click on the “Search” button instead of using the “enter” key.

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.

guide to the dictionary

use-icon

THE USAGE PANEL

The Usage Panel is a group of nearly 200 prominent scholars, creative writers, journalists, diplomats, and others in occupations requiring mastery of language. Annual surveys have gauged the acceptability of particular usages and grammatical constructions.

The Panelists

open-icon

AMERICAN HERITAGE DICTIONARY APP

The new American Heritage Dictionary app is now available for iOS and Android.

scroll-icon

THE AMERICAN HERITAGE DICTIONARY BLOG

The articles in our blog examine new words, revised definitions, interesting images from the fifth edition, discussions of usage, and more.

100-words-icon

See word lists from the best-selling 100 Words Series!

Find out more!

open-icon

INTERESTED IN DICTIONARIES?

Check out the Dictionary Society of North America at http://www.dictionarysociety.com

stud 1 (stŭd)
Share:
n.
1. An upright post in the framework of a wall for supporting sheets of lath, drywall, or similar material.
2. A small knob, nail head, or rivet fixed in and slightly projecting from a surface.
3.
a. A small ornamental button mounted on a short post for insertion through an eyelet, as on a dress shirt.
b. A buttonlike earring or other piercing mounted on a slender post, as of gold or steel.
4.
a. Any of various protruding pins or pegs in machinery, used mainly as a support or pivot.
b. One of a number of small metal cleats embedded in a snow tire to increase traction on slippery or snowy roads.
5. A metal crosspiece used as a brace in a link, as in a chain cable.
tr.v. stud·ded, stud·ding, studs
1. To provide with or construct with studs or a stud.
2. To set with studs or a stud: stud a bracelet with rubies.
3. To be scattered over: Daisies studded the meadow.

[Middle English stode, from Old English studu; see stā- in the Appendix of Indo-European roots.]

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
 
stud 2 (stŭd)
Share:
n.
1.
a. A group of animals, especially horses, kept for breeding.
b. A male animal, such as a stallion, that is kept for breeding.
c. A stable or farm where these animals are kept.
2. Slang
a. A usually young man who is very sexually active or promiscuous.
b. A usually young man regarded as attractive and physically fit.
3. Slang A person who is extremely competent in a given area.
4. Games Stud poker.
Idiom:
at stud
Available or offered for breeding. Used of animals.

[Middle English stod, establishment for breeding horses, from Old English stōd; see stā- in the Appendix of Indo-European roots.]

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
 

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.