What Are Gnu Make New On Poptropica What Does The $^ Or $@ Mean In GNU-make Commmand '$(call VAR,$^,$@)?

What does the $^ or $@ mean in GNU-make commmand '$(call VAR,$^,$@)? - what are gnu make new on poptropica

I think it has to do with roads or the current directory, but would like more details.
Thank you.