[procedure] apropos symbol

STk: Returns a list of symbols whose name contains symbol from the current environment.

[procedure] apropos symbol [module]

STklos: takes optional module argument.

[syntax] apropos symbol-or-regexp [module]

Gauche: prints the symbols and its defined modules whose name contains (or matches) symbol-or-regexp and visible from the current module. If module is given, symbols are searched only in the specified module.

[procedure] apropos regexp-string [options...]

Guile: prints bindings matching regexp-string. options are combination of symbols: full, shadow, value. If option 'value is supplied, bound values of constants are displayed.