“…In spoken languages, iconicity includes onomatopoeia, i.e., words representing sounds of animals, vehicles, or other objects, as well as sound symbolism, i.e., phonemes or words that match properties of their referents such as their shape or movement ( Ota et al, 2018 ). Onomatopoeic words are more prevalent in the vocabulary of young children as well as in child-directed speech and are discussed to facilitate vocabulary acquisition ( Ota et al, 2018 ; Laing, 2019 ; Motamedi et al, 2021 ). Accordingly, sound symbolism is already perceived and exploited by babies ( Peña et al, 2011 ; Ozturk et al, 2013 ) and continues to be involved in vocabulary learning by children of different ages ( Maurer et al, 2006 ; Imai et al, 2008 ; Massaro and Perlman, 2017 ; Tzeng et al, 2017 ).…”