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Those words is the Nunit-Console.exe's help

NUnit Help

NUNIT-CONSOLE [inputfiles] [options]

Runs a set of NUnit tests from the console.

You may specify one or more assemblies or a single
Project file of type. nunit.

Options:
/Fixture = STR Fixture to test
/Config = STR Project configuration to load
/Xml = STR Name of XML output file
/Transform = STR Name of transform file
/XmlConsole Display XML to the console
/Output = STR File to receive test output (Short format:/out = STR)
/Framework = STR. NET Framework version to execute with (eg 'v1. 0.3705 ')
/Err = STR File to receive test error output
/Labels Label each test in stdOut
/Include = STR List of categories to include
/Exclude = STR List of categories to exclude
/Domain = X AppDomain Usage for Tests
/Noshadow disable shadow copy when running in separate domain
/Nothread disable use of a separate thread for tests
/Wait for input before closing Console window
/Nologo do not display the logo
/Nodots do not display progress
/Help display help (short format :/?)

Options that take values may use an equal sign, a colon
Or a space to separate the option from its value.

As this helps we can use Nunit Test in Console Application.
The Cammand is:
NUNIT-CONSOLE "Filepath of Test Unit"/fixture = "Your Test Unit Class"