cum

UK: /ˈkʌm/ US: (prep. kum, kŏŏm; n. kum)

WordReference Random House Unabridged Dictionary of American English © 2026

cum¹  (kum, kŏŏm), prep. 

1. with;
   combined with;
   along with (usually used in combination):
   My garage-cum-workshop is well equipped.

• Latin: with, together with (preposition)
• 1580–90

cum²  (kum), n. [Slang] (vulgar).

1. Slang Terms come (def. 62).

cum., 

1. cumulative.

Collins Concise English Dictionary © HarperCollins Publishers::

cum / kʌm/ preposition

1. used between two nouns to designate an object of a combined nature: a kitchen-cum-dining room

Etymology: Latin: with, together with, along with

cum / kʌm/ verb

1. a variant spelling of come16

WordReference Random House Learner's Dictionary of American English © 2026

-cum-,¹  root. 

1. -cum- comes from Latin, where it has the meaning "with.'' It is used between two words to mean "with;
   combined with;
   along with'': a garage-cum-workshop (=
   a garage that is combined with a workshop).

cum.,  an abbreviation of:

1. cumulative.

cu. m.,  an abbreviation of:

1. cubic meter.