synesthesia 

A condition in which one type of stimulation evokes the sensation of another, as when the hearing of a sound produces the visualization of a color.

NOT an illness like schizophrenia, just a neurological condition.

I am a synesthete, and I taste words.

synesthesia by Amelia April 4, 2004

synesthesia 

A condition where real information from one sense is joined with false perceptions from other senses. People with this condition can "see" sound, or "smell" colors, etc. The experience varies from person to person. One synesthetic may have a solid color overlaying their vision, corresponding to pitch and volume; another may see different colors for different letters (K is always red, C is always blue for example). Synesthesia is often experienced when taking high doses of LSD; the likelihood of this effect appears to directly correlate to dosage.

Synesthetics often become composers or musicians; their unique ability to visualize sound is a distinct advantage.

synesthesia by progamer124 March 18, 2004

Synesthesia 

A condition which causes the senses to be crossed wired. For example: numbers, letters, words, music can all have colors, shapes, personalities, feelings. The equivalent of being born on LSD. Introverts are more likely to have it than extroverts.

Because of synesthesia; the number 4694 looks like beautiful fall colors to me.

Synesthesia by Dr. Meh August 5, 2012

synesthesia 

Synesthesia is a condition in which people have difficulty distinguishing between various sensory inputs.

this circle smells red

synesthesia by dude March 8, 2004