Signaling uniqueness: The psycholinguistic effect of language precision on product perceptions

Abstract This research reveals a psycholinguistic effect whereby more precise words in product communications increase consumer perceptions of product uniqueness. Drawing on Categorization Theory ( Cognitive Psychology , 7, 1975, 573; Foundations of cognitive psychology: Core readings , 2002, MIT Press, 251), the authors propose that more precise words in product descriptions are situated deeper within their semantic categories and denote narrower subsets of referents, thereby eliciting perceptions of product uniqueness. Four experiments provide robust evidence supporting the “precise‐unique effect” and its underlying psycholinguistic mechanism driven by categorical depth. The findings further suggest that consumers' need for product uniqueness moderates the downstream effects of language precision on perceived attractiveness and behavioral intention via perceived uniqueness. This research contributes to the growing literature on language effects in consumer psychology and provides practical implications for making strategic lexical choices that enhance product positioning and differentiation.