When it comes to referring to "element uns", there are various synonyms that can be used. The word "uns" often refers to a lack or absence of something. Therefore, synonyms that can be used to replace the word "uns" include words like deficient, lacking, incomplete, devoid, and insufficient. Other words that could be used to refer to "element uns" include "missing element", "absent component" or "lacking element". It's important to understand the context in which the word "uns" is being used so that the appropriate synonym can be chosen to convey the intended meaning.