Compounds such as alcohols and glucose also contain hydrogen but are not categorized as acids, why?

Due to deficiency of hydrogen ions compounds like alcohols and glucose also contain hydrogen but are not categorized as acids.
As compounds like glucose and alcohol are covalent compounds these compounds don’t form hydrogen ions in their solutions though they contain hydrogen in them. 

In their molten state, there is the absence of hydronium ions and due to this reason, they are not regarded as acids. Aqueous solutions of these compounds don’t conduct electricity which proves they are not acid.