Imageability and subjective frequency of the 500 rated nouns in the Croatian Lexical DatabaseProperties such as word class, length, phonological and morphological complexity, concreteness, frequency, age of acquisition, and imageability have to be controlled in research and clinical practice, since they strongly affect the speed and accuracy of language processing by monolinguals and bilinguals as well as by speakers with language disorders.The purpose of this paper is to present the online Croatian Lexical Database (Cro.Hrvatska leksi~ka baza [HLB], http://polin-hlb.erf.hr/) that contains different (psycho)linguistic word properties, and to use the HLB to provide the first analyses about (1) the relationship between frequency and imageability for the rated 500 nouns, and (2) the influence of raters' age, gender and education on their judgement.The results indicate a significant positive correlation between noun frequency and imageability, but no significant influence of the three non-linguistic rater factors on judgements about (psycho)linguistic property.