Is denied entry the same as deported?

Could you please clarify the distinction between being denied entry and being deported? Are these two situations considered equivalent in terms of legal and practical implications? For instance, if someone is denied entry to a country, does that mean they have been removed from the country forcibly, or is it simply a refusal of entry? On the other hand, if someone is deported, does that automatically imply they were initially allowed entry and then subsequently removed? It would be greatly appreciated if you could elaborate on the key differences between these two scenarios and their respective consequences.