ID

noun

1. a state in the Rocky Mountains

   noun.location

   Synonyms gem state idaho

   Source: WordNet 3.0

2. a card or badge used to identify the bearer

   noun.communication

   Examples

   You had to show your ID in order to get in.

   Synonyms i.d.

   Source: WordNet 3.0

3. (psychoanalysis) primitive instincts and energies underlying all psychic activity

   noun.cognition

   Source: WordNet 3.0

4. A small fresh-water cyprinoid fish (<i>Leuciscus idus</i> or <i>Idus idus</i>) of Europe. A domesticated variety, colored like the goldfish, is called <i>orfe</i> in Germany.

   noun

   Source: webster1913