The Collaborative International Dictionary
Private \Pri"vate\ (pr[imac]"v[asl]t), n.
A secret message; a personal unofficial communication. [Obs.]
--Shak.-
Personal interest; particular business.[Obs.]
Nor must I be unmindful of my private.
--B. Jonson. Privacy; retirement. [Archaic] ``Go off; I discard you; let me enjoy my private.''
--Shak.-
One not invested with a public office. [Archaic]
What have kings, that privates have not too?
--Shak. (Mil.) A common soldier; a soldier below the grade of a noncommissioned officer.
--Macaulay.-
pl. The private parts; the genitals.
In private, secretly; not openly or publicly.
Wiktionary
adv. privately, where no one else can see and/or hear what one is doing or saying.
WordNet
Wikipedia
"In Private" was the third single in a row to be a charting success for British singer Dusty Springfield, after nearly two decades of little chart success. Both "In Private" and Springfield's previous single, " Nothing Has Been Proved" were produced by Pet Shop Boys, who helped return Springfield to prominence with their 1987 hit collaboration " What Have I Done to Deserve This?". Both Springfield singles were included on her 1990 British album Reputation.