Difference between Nickname and Soubriquet

NICKNAME vs SOUBRIQUET: NOUN

A familiar name for a person (often a shortened version of a person's given name)
A descriptive name added to or replacing the actual name of a person, place, or thing.
A familiar or shortened form of a proper name.
A name given to a person in contempt, derision, or reproach; an opprobrious or contemptuous appellation.
A familiar or diminutive name.
A name given in affectionate familiarity, sportive familiarity, contempt, or derision; a familiar or an opprobrious appellation.
A familiar, invented given name for a person or thing used instead of the actual name of the person or thing.
A kind of byname that describes a person by a characteristic of that person.
A descriptive name for a place or thing

A familiar name for a person (often a shortened version of a person's given name)
See sobriquet.
Alternative spelling of sobriquet.

Handle, Term, Pseudo, Title, Nick, Aka, Pseudonym, Alias, Surname, Name, Dub, Cognomen, Soubriquet, Sobriquet, Moniker

Behalf, Handle, Term, Pseudo, Title, Nick, Pseudonym, Alias, Surname, Name, Dub, Cognomen, Soubriquet, Sobriquet, Moniker

Choose a nickname for yourself: Use a unique nickname in each room you're in, real or made up.
Nickname for Johannes or English nickname for John.
Each player has to use a nickname that is similar to the nickname entered in during registration and you game account.
If the nickname and reference option is notaddress or nickname, for a total of five lines above the instruction.
Add support for converting services operators, nickname access lists and nickname grouping in anope_convert.
Change Nickname: This feature allows you to provide a nickname for your accounts.
ID and nickname is the nickname that you want to use.
If a Nickname is specified, it must be the exact nickname.
SAM: Well, I gave him a nickname to the nickname.
Petra: Did you just give my nickname a nickname?

The private investigator's efforts have quite rightly earned him the soubriquet of Indiana Jones of the art world.
The soubriquet an tearmainn means 'of the termon', i.e. church lands of sanctuary.
The soubriquet the Green Machine sounds slightly misplaced at the moment.
We suspect the soubriquet was bestowed on her by the late diarist Nigel Dempster.