1. So large in scope or content as to include much: a comprehensive history of the revolution.
2. Marked by or showing extensive understanding: comprehensive knowledge.
n. often comprehensives
An examination or series of examinations covering the entire field of major study, given to a student in the final year of undergraduate or graduate study.
[Late Latin comprehēnsīvus, conceivable, from Latin comprehēnsus, past participle of comprehendere, to comprehend; see COMPREHEND.]
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.