I wonder how conflated the ideas are a "dictionary" versus a "hash table" are in a lot of developer minds (a dictionary is an abstract data type that makes no g

I wonder how conflated the ideas are a "dictionary" versus a "hash table" are in a lot of developer minds (a dictionary is an abstract data type that makes no guarantees about how it's implemented, while a hash table is a specific way to implement a dictionary). For a savvy developer, is it worth it to know the differences? Do you know how a dictionary is implemented in your language of choice?