ID

Multiple Entries:
  ID    Id    id    -id    Eid    I'd    id.  

Concise Oxford English Dictionary © 2008 Oxford University Press:
ID/ʌɪˈdiː/

▶abbreviation

• 1 Idaho (in official postal use).

• 2 identification or identity.

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Id

▶noun variant spelling of Eid.

Concise Oxford English Dictionary © 2008 Oxford University Press:
id /ɪd/

▶noun Psychoanalysis the part of the mind in which innate instinctive impulses and primary processes are manifest. Compare with ego and superego.

– origin 1920s: from L., lit. ‘that’, translating Ger. es.

Concise Oxford English Dictionary © 2008 Oxford University Press:
-id1

▶suffix forming adjectives such as putrid.

– origin from Fr. -ide from L. -idus.

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-id2

▶suffix

• 1 forming nouns such as pyramid.

• 2 Biology forming names of structural constituents: plastid.

• 3 Botany forming names of plants belonging to a family with a name ending in -idaceae: orchid.

– origin from or suggested by Fr. -ide, via L. -idis from Gk -is, -id-.

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-id3

▶suffix forming nouns.

• 1 Zoology denoting an animal belonging to a family with a name ending in -idae or to a class with a name ending in -ida: arachnid.

• 2 denoting a member of a specified dynasty or family.

• 3 Astronomy denoting a meteor in a shower radiating from a specified constellation: Geminids.

– origin from or suggested by L. -ides (pl. -idae, -ida), from Gk.

Concise Oxford English Dictionary © 2008 Oxford University Press:
Eid /iːd/ (also Id)

▶noun

• 1 (in full Eid ul-Fitr /ˌiːdʊlˈfɪtrə/) the Muslim festival marking the end of the fast of Ramadan. Also called Lesser Bairam.

• 2 (in full Eid ul-Adha /ˌiːdʊlˈɑːdə/) the festival marking the culmination of the annual pilgrimage to Mecca. Also called Greater Bairam.

– origin from Arab. ‘īd ‘feast’, from Aramaic.

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I'd/ʌɪd/

▶contraction

• 1 I had.

• 2 I should or I would.

Concise Oxford English Dictionary © 2008 Oxford University Press:
id./ɪd/

▶abbreviation idem.