This paper aims at discussing Chou 1994 (NSC83-0301-H-029-012) data, collected through the investigation on 320 children subjects. The subjects were asked to write down the words or expressions which came to mind for each of the stimulus we show on board. Chou 1994’s data give us the picture, that the free association of the same stimulus could bring out a group of expressions with family resemblance, which is in some respect homogeneous, but with membership grandniece: part-whole、center-periphery、concrete(those physically exist or those with bodily experience) –abstract (those being conceptualized) etc.. From cognitive point of view, our data show children’s perception on the lexical meaning of the stimulus, as well as their cognitive processes of the lexical extension, through the metaphorical mapping from a concrete source domain to an abstract target domain, the metonymically manipulating with the part for the whole, center to periphery, or vice versa. The potential of children’s operation in world, association cannot simply be the conventional definition of synonyms, and the ‘right’ or ‘wrong’ comments neither. This paper opens a window to reconsider our knowledge on the extension and transformation of lexical meaning.