moniker

noun3

1. •
   A personal name or nickname; an informal label, often drawing attention to a particular attribute.

   • The rookie was upset at being called Lemon Drop until she realized that everyone on the team had a silly moniker.
2. •
   A person's signature.

   • The monikers of both these famously well-endowed movie stars contain enormous sworls (two of them, no less, for Ms West!) that could only signify you-know-what, according to Ms Koren. — 2007
3. •
   An object (structured item of data) used to associate the name of an object with its location.

   • Monikers are often composed from other monikers to allow object hierarchies to be navigated based on a textual description of a path. — 1998