ID

¹

[ ahy-dee ]

noun

1. a means of identification, as a card or bracelet containing official or approved identification information.

verb (used with object)

, ID'd or IDed or ID'ed, ID'ing or ID·ing.

1. to identify.
2. to issue an ID to:

   Go to the admissions office if you haven't been ID'd yet.

-id

²

1. a suffix of nouns that have the general sense “offspring of, descendant of,” occurring originally in loanwords from Greek ( Atreid; Nereid ), and productive in English on the Greek model, especially in names of dynasties, with the dynasty's founder as the base noun ( Abbasid; Attalid ), and in names of periodic meteor showers, with the base noun usually denoting the constellation or other celestial object in which the shower appears ( Perseid ).

ID

³

abbreviation for

1. Idaho (approved especially for use with zip code).
2. infectious disease ( def ).
3. inner diameter, internal diameter, or inside diameter. Also i.d.
4. intellectual disability ( def ).
5. intelligent design.

-id

⁴

1. a suffix occurring in English derivatives of modern Latin taxonomic names, especially zoological families and classes; such derivatives are usually nouns denoting a single member of the taxon or adjectives with the sense “pertaining to” the taxon: arachnid; canid .

-id

⁵

1. variant of -ide: lipid .

-id

⁶

1. a suffix occurring in descriptive adjectives borrowed from Latin, often corresponding to nouns ending in -or1 : fetid; humid; pallid .

id

⁷

[ id ]

noun

, Psychoanalysis.

1. the part of the psyche, residing in the unconscious, that is the source of instinctive impulses that seek satisfaction in accordance with the pleasure principle and are modified by the ego and the superego before they are given overt expression.

I'd

⁸

[ ahyd ]

1. contraction of I had:

   I'd never seen anything like it before!

2. contraction of I would:

   If I were you, I'd be careful what I wish for.

id.

⁹

abbreviation for

1. idem.

Id.

¹⁰

abbreviation for

1. Idaho.

ID.

¹¹

abbreviation for

1. (in Iraq ) dinar; dinars.

I.D.

¹²

abbreviation for

1. identification.
2. identity.
3. Military. Infantry Division.
4. Intelligence Department.

-id

¹

suffix forming nouns

1. a variant of -ide

I'd

²

/ aɪd /

contraction of

1. I had or I would

-id

³

suffix forming nouns

1. indicating the names of meteor showers that appear to radiate from a specified constellation

   Orionids (from Orion)

2. indicating a particle, body, or structure of a specified kind

   energid

ID

⁴

abbreviation for

1. Idaho
2. identification (document)
3. Alsoi.d inside diameter
4. Intelligence Department
5. Alsoi.d intradermal

-id

⁵

suffix forming adjectives

1. indicating members of a zoological family

   cyprinid

2. indicating members of a dynasty

   Fatimid

   Seleucid

Id.

⁶

abbreviation for

1. Idaho

id.

⁷

abbreviation for

1. idem

id

⁸

the internet domain name for

1. Indonesia

id

⁹

/ ɪd /

noun

1. psychoanal the mass of primitive instincts and energies in the unconscious mind that, modified by the ego and the superego, underlies all psychic activity

id

1. In Freudian theory, the part of the psyche associated with instinctual, repressed, or antisocial desires, usually sexual or aggressive. In its efforts to satisfy these desires, the id comes into conflict with the social and practical constraints enforced by the ego and superego . ( See also pleasure principle .)

Usage Note

See contraction.

Word History and Origins

Origin of ID¹

First recorded in 1935–40

Origin of ID²

< Latin -id-, stem of -is < Greek: feminine patronymic suffix; or < Latin -idēs < Greek: masculine patronymic suffix

Origin of ID³

< Greek -idēs -id ¹, as singular of New Latin -ida -ida or -idae -idae

Origin of ID⁴

From the Latin suffix -idus

Origin of ID⁵

1920–25; < Latin id it, as a translation of German Es, special use of es it, as a psychoanalytic term

Origin of ID⁶

First recorded in 1590–1600

Origin of ID⁷

First recorded in 1950–55

Word History and Origins

Origin of ID¹

from Latin -id-, -is, from Greek, feminine suffix of origin

Origin of ID²

from New Latin -idae or -ida, from Greek -idēs suffix indicating offspring

Origin of ID³

C20: New Latin, from Latin: it; used to render German Es

Example Sentences

As I wrote after the first night, it seemed like the Democratic Party’s long-suppressed id was escaping containment for the first time in decades.

From Salon

To that point, longtime observers of Trump have concluded his behavior appears to be driven almost completely by the id and his other most core and primal instincts.

From Salon

He was the rubber-limbed, unchained id of “Seinfeld,” the most popular sitcom of its era and a cultural phenomenon cultish in its fervor but too massive to really be considered a cult.

From Los Angeles Times

It says a great deal about Seattle’s inner id that we’d never think of speaking about ourselves in such a gauzy light.

From Seattle Times

They offered live commentary on whether they agreed or disagreed with the remarks, and voted, forming an informal poll — a scrolling corporate id.

From New York Times