1. The act of understanding and mentally supplying a word or thought that has been implied but not expressed.
2. A word or thought supplied by subaudition.
[Late Latin subaudītiō, subaudītiōn-, from subaudītus, past participle of subaudīre, to supply an omitted word : Latin sub-, sub- + Latin audīre, to hear; see au- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.