Inference is abroad science which may include different forms such as inferring on illusion, inferring on position, inferring on counterpart, inferring male on female, inferring female on male, inferring on proximity, and inferring on inclusion.Inferring among ancient was very common as a significant grammatical issue as it is a form of interpretation gramatetion referred to when needed to refer exceptions from the role to it. Referring on meaning is based on the notions that rejecting multiplicity to simplicity and unification seeking for consistency. It adopts then a mental approach which makes it an interpretation instrument; making the unacceptable on grammatical bases acceptable. This is a necessary forcing idea required by the mind.This study examined the notion of inferring on meaning while clarifying its concept, forms and its effect in analyzing grammatical structures and their interpretation.