> Perhaps design your own language that removes ambiguity.
That's what a controlled vocabulary is. It's essentially a set of tags which are clearly defined. So instead of #horses being defined purely by the word "horses," it has an attached definition along the lines of, "The category 'horses' includes equine biology, sports relating to horses, the cultural history of horses, and all other topics involving real horses. Metaphorical horses such as saw horses are not included." Tags like #horse would be redirected to #horses, since there is only one canonical horse tag in the vocabulary.
That's what a controlled vocabulary is. It's essentially a set of tags which are clearly defined. So instead of #horses being defined purely by the word "horses," it has an attached definition along the lines of, "The category 'horses' includes equine biology, sports relating to horses, the cultural history of horses, and all other topics involving real horses. Metaphorical horses such as saw horses are not included." Tags like #horse would be redirected to #horses, since there is only one canonical horse tag in the vocabulary.