1. A distinguishing trait
   - peculiarity, specialty [N. Amer], speciality [Brit, Cdn], distinctiveness 
2. The quality of being particular and pertaining to a specific case or instance
   - particularity

Derived forms: specialnesses

See also: special

Type of: individualism, individuality, individuation, quality

• outlet
• outlet box
• outlier
• outline
• outlined
• outlive
• outlook
• outlying
• outmaneuver
• outmanoeuvre
• outmarch
• outmatch
• outmode
• outmoded
• outmost
• outnumber
• outpace
• outpatient
• outperform
• outplay
• outpoint
• outport
• outpost
• outpour
• outpouring