1. Regardless of the fact that; even though: Although the room is big, it won't hold all that furniture.
2. But; however: He says he has a dog, although I've never seen it.
Usage Note: As conjunctions, although and though are generally interchangeable: Although (or though) she smiled, she was angry. Although usually occurs at the beginning of its clause (as in the preceding example), whereas though may occur elsewhere and is the more common term when used to link words or phrases, as in wiser though poorer. In certain constructions, however, only though is acceptable. When though introduces only a part of a clause rather than a whole clause, although is not possible: Most people in attendance applauded loudly after the performance, though (not although) not everyone. Another construction that requires though is the following: Fond though (not although) I am of sports, I'd rather not sit through another basketball game.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.
American Heritage Dictionary Products
The American Heritage Dictionary, 5th Edition
The American Heritage Dictionary of Idioms
The American Heritage Roget's Thesaurus
Curious George's Dictionary
The American Heritage Children's Dictionary
The American Heritage Dictionary of Indo-European Roots
The American Heritage Student Grammar Dictionary
The American Heritage Desk Dictionary + Thesaurus
The American Heritage Science Dictionary
The American Heritage Dictionary of Business Terms
The American Heritage Student Dictionary
The American Heritage Essential Student Thesaurus