EBSCO Key Words In Context (EKWIC) bolds all the keywords regardless of where they exist in the results display.
Because of this, you may notice the following when searching EBSCOhost:
Bolding stop words that are not searched but are a part of your search.
Not restricting bolding to terms you searched as a phrase.
Bolding plural and possessive forms of terms invoked by the default thesaurus and synonyms invoked by T1 thesaurus.
Related terms: highlighted keywords, bold keywords
What are stop words and how does EBSCOhost handle them?