new option/checkbox: "expand my results with synonyms"
The Primo Search Engine includes synonyms by default to expand the result list. This often leads to results which are fuzzy and hardly explainable.
Instead of including synonyms by default we want to see an option to include synonyms by explicit user decision.
This option ("expand my result using synonyms") could be included into the facets section or should be visible close to the search button.
Peta H commented
One problem with having them turned off by default is that alternate spellings are handled as synonyms and would also be turned off. This would be an issue for us for words like organisation/organization behavior/behaviour sulfur/sulphur fetus/foetus etc.
If alternate spellings were a separately managed list to synonyms, then having alternate spellings included by default and an option to toggle synonyms on/off may be more helpful in situations where too few results or too many fuzzy results are returned.