PowerShell aliases are alternative descriptors (usually abbreviations) for PowerShell commandlets.
PowerShell Commands, also called Commandlets or Cmdlets, are the smallest unit of the PowerShell scripting language, consisting of a verb, a noun and a parameter list.
PowerShell editors are text editor programs designed specifically for editing PowerShell script code.
PowerShell Scripting Language
The PowerShell scripting language is an object-oriented programming language associated to the PowerShell command-line shell.