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co

abbreviation

Definition of co

  1. 1 company

  2. 2 county

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Co

symbol

Definition of Co

  1. cobalt

Other Chemical Engineering Terms

alkali, cation, decant, hygroscopic, isotope, oxidize, slurry, solute, viscous

CO

abbreviation

Definition of CO

  1. 1 cash order

  2. 2 Colorado

  3. 3 commanding officer

  4. 4 conscientious objector

  5. 5 corrections officer

See CO defined for English-language learners

co-

prefix

Definition of co-

  1. 1 :  with :  together :  joint :  jointly coexist coheir

  2. 2 :  in or to the same degree coextensive

  3. 3a :  one that is associated in an action with another :  fellow :  partner coauthor coworkerb :  having a usually lesser share in duty or responsibility :  alternate :  deputy copilot

  4. 4 :  of, relating to, or constituting the complement of an angle cosine

  1. coact

  2. coaction

  3. coactive

  4. coactor

  5. coadministration

  6. coanchor

  7. coauthor

  8. coauthorship

  9. cocaptain

  10. cocatalyst

  11. cochair

  12. cochairman

  13. cochairperson

  14. cochairwoman

  15. cochampion

  16. cocomposer

  17. coconspirator

  18. cocounsel

  19. cocreate

  20. cocreator

  21. cocultivate

  22. cocultivation

  23. coculture

  24. cocurator

  25. codefendant

  26. codesign

  27. codevelop

  28. codeveloper

  29. codirect

  30. codirection

  31. codirector

  32. codiscover

  33. codiscoverer

  34. codrive

  35. codriver

  36. coedit

  37. coeditor

  38. coeternal

  39. coexecutor

  40. cofavorite

  41. cofeature

  42. cofinance

  43. cofound

  44. cofounder

  45. cohead

  46. coheir

  47. coheiress

  48. coholder

  49. cohost

  50. cohostess

  51. coinvent

  52. coinventor

  53. coinvestigator

  54. coinvestor

  55. cojoin

  56. colead

  57. coleader

  58. comanage

  59. comanagement

  60. comanager

  61. comember

  62. conominee

  63. co–occur

  64. co–occurrence

  65. co–occurrent

  66. co–official

  67. co–organizer

  68. co–own

  69. co–owner

  70. co–ownership

  71. copartner

  72. copartnership

  73. copresent

  74. copresident

  75. coprince

  76. coprincipal

  77. coprisoner

  78. coprocessing

  79. coproduce

  80. coproducer

  81. coproduction

  82. copromoter

  83. coproprietor

  84. coprosperity

  85. copublish

  86. copublisher

  87. corecipient

  88. coresearcher

  89. coresident

  90. coresidential

  91. coruler

  92. coscenarist

  93. coscript

  94. cosponsor

  95. cosponsorship

  96. costar

  97. cosurfactant

  98. cotenant

  99. cotransduce

  100. cotransduction

  101. cotransfer

  102. cotransport

  103. cotrustee

  104. cowinner

  105. coworker

  106. cowrite

  107. cowriter

See co- defined for English-language learners

See co- defined for kids

Origin and Etymology of co-

Middle English, from Latin, from com-; akin to Old English ge-, perfective and collective prefix, Old Irish com- with

CO Defined for English Language Learners

co-

prefix

Definition of co- for English Language Learners

  • : with : together

  • : associated with another

CO Defined for Kids

CO

abbreviation

Definition of CO for Students

  1. Colorado

co-

prefix

Definition of co- for Students

  1. 1 :  with :  together :  joint :  jointly cooperate

  2. 2 :  in or to the same degree

  3. 3 :  fellow :  partner coauthor

Medical Dictionary

Co

abbreviation

Medical Definition of Co

  1. coenzyme

Co

symbol

Medical Definition of Co

  1. cobalt

CO

abbreviation

Medical Definition of CO

  1. cardiac output

Law Dictionary

co

abbreviation

Legal Definition of co

  1. 1 company

  2. 2 county

CO

abbreviation

Legal Definition of CO

  1. 1 commanding officer

  2. 2 conscientious objector

  3. 3 corrections officer

co-

prefix

Legal Definition of co-

  1. 1 :  with :  together :  joint :  jointly codefendant

  2. 2a :  associated in an action with another :  fellow co-conspirator b :  having a usually lesser share in duty or responsibility :  alternate :  deputy co-counsel

Learn More about co

  1. Britannica English: Translation of co for Arabic speakers

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to glide in or as if in an airplane

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