This study focused on how Taiwanese young children's perception of what a word is and what elements should be included in a word. The investigation included 145 subjects ranging from 4 to 6 years old from middle to low social economic status families in a mid-size city of eastern Taiwan. Subjects were shown words from seven different languages and two figures and were asked to decide whether it is a word. All the subjects’ answers were analyzed quantitatively and qualitatively. The results suggest that Taiwanese children think that a word must be either look like Chinese characters or English alphabets. They believe that Chinese characters should include some strokes, squares, but not circles or triangles, and should look tidy. English could be longer than Chinese words, but should be orderly and have no circles. Around age four, Taiwanese young children seem to start constructing their concepts about word characteristics.