whence

A zsh builtin to indicate how a given command would be interpreted. More information: https://www.unix.com/man-page/OpenSolaris/1/whence/.

• Interpret {{command}}, with expansion if defined as an alias (similar to the command -v builtin):
  whence "{{command}}"
• Display type of {{command}}, with location if defined as a function, or binary (equivalent to the type and command -V builtins):
  whence -v "{{command}}"
• Same as above, except display content of shell functions instead of location (equivalent to which builtin):
  whence -c "{{command}}"
• Same as above, but show all occurrences on command path (equivalent to the where builtin):
  whence -ca "{{command}}"
• Search only the PATH for {{command}}, ignoring builtins, aliases or shell functions (equivalent to the where command):
  whence -p "{{command}}"