od

interjection, often capitalized
\ ˈäd How to pronounce od (audio) \
variants: or

Definition of od

 (Entry 1 of 4)

archaic
used as a mild oath

OD

noun
\ ˌō-ˈdē How to pronounce OD (audio) \

Definition of OD (Entry 2 of 4)

1 : an overdose of a narcotic
2 : one who has taken an OD

OD

verb
OD'd or ODed; OD'ing; OD's

Definition of OD (Entry 3 of 4)

intransitive verb

1 : to become ill or die of an OD
2 : to have or experience too much of something usually used with on OD on television

Definition of OD (Entry 4 of 4)

1 doctor of optometry
2 [Latin oculus dexter] right eye
3 officer of the day
4 olive drab
5 on demand
6 outside diameter; outside dimension
7 overdraft; overdrawn

First Known Use of od

Interjection

1600, in the meaning defined above

Noun

1859, in the meaning defined at sense 1

Verb

1965, in the meaning defined at sense 1

History and Etymology for od

Interjection

euphemism for God

Noun

overdose

Learn More About od

Dictionary Entries Near od

Ocyroe

od

OD

See More Nearby Entries 

Statistics for od

Cite this Entry

“Od.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/od. Accessed 19 Jan. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for od

OD

verb

English Language Learners Definition of OD

: to become sick or die from taking too much of a drug : overdose
: to have or experience too much of something

od

abbreviation

Medical Definition of od

 (Entry 1 of 4)

every day used in writing prescriptions

OD

noun
\ (ˈ)ō-ˈdē How to pronounce OD (audio) \

Medical Definition of OD (Entry 2 of 4)

1 : an overdose of a narcotic
2 : an individual who has taken an OD

OD

intransitive verb
OD'd or ODed; OD'ing; OD's

Medical Definition of OD (Entry 3 of 4)

: to become ill or die of an OD

OD

abbreviation

Medical Definition of OD (Entry 4 of 4)

1 doctor of optometry
2 [Latin oculus dexter] right eye used in writing prescriptions

History and Etymology for od

Abbreviation

Latin omnes dies

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!