Doublet

Doublet ( doublet outdated; loanword from the 18th century doublet according to French, to double, double ') may refer to:

Doublet (library ), a double existing piece or Katalogisat, especially in collections and libraries
Doublet (database), a multiple- existing with a slightly different spelling record in Information Technology
In linguistics either Words with the same meaning ( " semantic doublet "), see synonym, or
Words with different meanings which have evolved from a root word ( " etymological doublet "), see cognate