-id

¹ American  

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 ² American  

1. variant of -ide: lipid .

---

Id. ³ American  

abbreviation

1. Idaho.

---

id ⁴ American  

[id] / ɪd /

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.

---

-id ⁵ American  

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 .

---

I.D. ⁶ American  

abbreviation

1. identification.

2. identity.

3. Military.  Infantry Division.

4. Intelligence Department.

---

ID ⁷ American  

[ahy-dee] / ˈaɪˈdi /

noun

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

---

verb (used with object)

ID'd, IDed, ID'ed, ID'ing, IDing.

1. to identify.

2. to issue an ID to.

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

-id ⁸ American  

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

---

ID. ⁹ American  

abbreviation

1. (in Iraq ) dinar; dinars.

---

ID ¹⁰ American  

abbreviation

1. Idaho (approved especially for use with zip code).

2. infectious disease.

3. inner diameter, internal diameter, or inside diameter. Also i.d.

4. intellectual disability.

5. intelligent design.

---

id. ¹¹ American  

abbreviation

1. idem.

---

I'd ¹² American  

[ahyd] / aɪd /

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 ¹ British  

/ 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

---

I'd ² British  

/ aɪd /

contraction

1. I had or I would

---

ID ³ British  

abbreviation

1. Idaho

2. identification (document)

3. Also: i.d.  inside diameter

4. Intelligence Department

5. Also: i.d.  intradermal

---

id. ⁴ British  

abbreviation

1. idem

---

-id ⁵ British  

suffix

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 ⁶ British  

suffix

1. indicating members of a zoological family

   cyprinid

2. indicating members of a dynasty

   Seleucid

   Fatimid

---

id ⁷ British  

abbreviation

1. Indonesia

---

-id ⁸ British  

suffix

1. a variant of -ide

---

Id. ⁹ British  

abbreviation

1. Idaho

---

id Cultural  

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

See contraction.

Etymology

Origin of -id¹

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

Origin of id¹

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

Origin of -id¹

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

Origin of I.D.¹

First recorded in 1950–55

Origin of ID¹

First recorded in 1935–40

Origin of -id¹

From the Latin suffix -idus

Origin of I'd¹

First recorded in 1590–1600

Example Sentences

Under the new policy, travelers who hold an older form of ID will be required to pay the fee on pay.gov and show a receipt at an initial Transportation Security Administration checkpoint, the agency said Monday.

From The Wall Street Journal

They will then need to confirm their identity through a TSA system known as TSA Confirm ID, which can check a person’s identity against passport data and other personally identifying information.

From The Wall Street Journal

Travelers who don’t have a compliant ID have been subject to additional screening measures, and can be denied access to their flights if their identities can’t be confirmed.

From The Wall Street Journal

County residents encountering plainclothes or masked agents who refuse to identify themselves or show ID.

From Los Angeles Times

Siddiq's lawyers have disputed she is a Bangladeshi citizen, telling the Financial Times she has "never had" an ID card or voter ID, and "has not held a passport since she was a child".

From BBC