Which of the following commands shows the definition of a given shell command?

`where` is not a standard shell command for displaying command definitions in typical Linux/Unix environments; `which` or `whereis` are used to locate executables, but `type` provides the shell's interpretation.

The `stat` command displays detailed information about file or filesystem status (e.g., size, permissions, ownership, timestamps), but not the shell's interpretation of a command.

The `type` command displays whether a given command is an alias, shell function, built-in command, or an external executable, and provides its path if it is an executable.

`case` is a shell control flow construct used for conditional execution, not a command to query command definitions.