1. [ noun ] (psychology) a card or badge used to identify the bearer
Synonyms: I.D.

"you had to show your ID in order to get in"

Related terms: identification badge positive_identification
2. [ noun ] (government,geography) a state in the Rocky Mountains
Synonyms: Gem_State Idaho
Related terms: American_state US idaho_falls Salmon Boise twin_falls coeur_d'alene lewiston nampa pocatello Snake Yellowstone_National_Park
3. [ noun ] (psychoanalysis) primitive instincts and energies underlying all psychic activity
Related terms: instinct unconscious_mind psychoanalysis
Similar spelling:   Ido