compendium

UK: /kəmˈpɛndɪəm/ US: /kəmˈpɛndiəm/ ,(kəm pen′dē əm)

Inflections of 'compendium' (n):

compendiums

npl

compendia

npl

WordReference Random House Learner's Dictionary of American English © 2025

com•pen•di•um /kəmˈpɛndiəm/   n. [countable] , pl. -di•ums, -di•a 

/-diə/.  
1. Literature a brief treatment of a subject:
   a compendium of useful information.

See -pend-.

WordReference Random House Unabridged Dictionary of American English © 2025

com•pen•di•um  (kəm pen′dē əm), n., pl. -di•ums, -di•a 

(-dē ə). 
1. Literature a brief treatment or account of a subject, esp. an extensive subject; concise treatise:
   a compendium of medicine.
2. Literature a summary, epitome, or abridgment.
3. a full list or inventory:
   a compendium of their complaints.

Also, com•pend  (kom′pend). 

• Latin: gain, saving, shortcut, abridgment, equivalent. to com- com- + pend- (stem of pendere to cause to hang down, weigh) + -ium -ium
• 1575–85

Synonyms

• 1. survey, digest, conspectus.

Collins Concise English Dictionary © HarperCollins Publishers::

compendium / kəmˈpɛndɪəm/ noun ( -diums, -dia / -dɪə/)

1. a book containing a collection of useful hints
2. a selection, esp of different games or other objects in one container
3. a concise but comprehensive summary of a larger work

Etymology: 16th Century: from Latin: a saving, literally: something weighed, from pendere to weigh