conversate

Conversate is not listed as a standard word in this dictionary, meaning that language users don’t view it as an accepted word and don’t use it regularly with a standard meaning. Instead, conversate is an informal variant of converse, created by dropping the -ion from conversation and adding an -e. 

An informal variant is a term used in informal situations but not recognized as acceptable by most language users. You wouldn’t use conversate in formal or semiformal situations, but you might use it among your friends. 

Note: Just because a word isn’t considered a standard word in the dictionary doesn’t necessarily mean it’s “not a word.” Some people may use it, and if enough people start using it regularly, it may be added to the dictionary.