Sense refers to the inherent meaning of a linguistic form, focusing on intra-linguistic relations between words independent of context. Reference relates a linguistic form to real-world entities. Sense is abstract while reference deals with experience. For example, "dog" has the sense of domesticated canine but can refer to different actual dogs. A form can have multiple references but the same reference can be denoted by different senses. Not all forms have reference if the referred entity doesn't exist. Sense and reference are both parts of meaning and their relationship is explained through examples.