The inferential truth of the conclusion is only probably. A good deductive argument succeeds in its attempt. Such an argument is called 'valid'. Such a bad deductive argument is called 'invalid'. A good inductive argument succeeds in its attempt.
Arguments are one form of inference, one form of movement of thought.
There are other inferences worthy of being studied, analyzed and assessed by logicians and students of logic, even if those inferences don't involved language. In general, a deductive inference is a movement of thought such that if the earlier, 'premise' thoughts are assumed correct or meaningful, then the later, 'concluding' thought is guaranteed correct or relatedly meaningful as a consequence. An inductive inference is a movement of thought such that, if the earlier premise-thoughts are assumed correct or meaningful, then the concluding thought is only more probably correct or relatedly meaningful than incorrect or unrelated as a consequence. Deductive arguments are deductive inferences. But there are more deductive inferences than just deductive arguments.