Dictionary

The American Heritage Dictionary of the English Language, 4th edition, published by Houghton Mifflin Company
The American Heritage Dictionary provides clear and precise definitions along with an authoritative guide to usage. You can also check a word's spelling, syllabification and etymology, and hear an audio pronunciation.
On this page: Abo to Aegisthus.

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Title Index: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9
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Abo (Australian Aborigine)
Acadian (Acadia or its people)
Accolate (trademark)
Accutane (trademark)
Aceldama (place with dreadful associations)
Achaean (native or inhabitant of Achaea)
Achaemenid (dynasty)
Achates (Greek &)
Achernar (star)
Acheron (river of woe)
Acheulian (stage of tool culture)
Achilles (hero of Homer's Iliad)
Achilles jerk (reflex bending of the foot)
Achilles tendon (tendon connecting the heel bone)
Achilles' heel (crucial weakness)
Achomawi (Native American people)
Acoma (Pueblo people)
Acrisius (king of Argos and father of Dana)
Actaeon (young hunter)
Activase (trademark)
Ada (programming language)
Adam (characteristic of the neoclassic style)
Adam's apple (slight projection at the front of the throat)
Adam's-needle (stemless or nearly stemless plants)
Adar (month of the year)
Adar Sheni (extra month of the Hebrew year)
Adena (Native American culture)
Adirondack chair (outdoor armchair)
Adlerian (being a psychological school)
Admetus (king of Thessaly and husband of Alcestis)
Adonai (Lord)
Adonis (Greek Mythology)
Adrastea (satellite of Jupiter)
Adrenalin (trademark)
Adriamycin (trademark)
Adventist (member of any of several Christian denominations)
Adélie penguin (Antarctic penguin)
Aeacus (king of Aegina)
Aegean (Aegean Sea)
Aegeus (king of Athens and the father of Theseus)
Aegir (Norse god of the sea)
Aegisthus (son of Thyestes and lover of Clytemnestra)