the last/final word
nounDefinition of the last/final word
1
: the final thing said in an argument or a discussion
Your mother's decision is the final word on the matter. Why do you always have to have the last word?
2
: the power to make a final decision
The judge will have the last word on the divorce agreement.
3
informal
: the most modern or best one of its kind
This is the last word in wireless phones. The van's design is the last word in safety.