1. Sharing an edge or boundary; touching.
2. Neighboring; adjacent.
a. Connecting without a break: the 48 contiguous states.
b. Connected in time; uninterrupted: served two contiguous terms in office.
[From Latin contiguus, from contingere, contig-, to touch; see CONTACT.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. 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:
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.