Kim Yeun-Sim. 2002. A Study on the Word-field of the Nouns Expressing <시각(seeing act>) in Modern Korean Language (Ⅲ) - Especially on the <관심(concern)> -. Korean Semantics, 10. The main expression of this study on the word-field of the nouns <시각 (seeing act)> is the substructure which is characterized as <관심 (concern)>. <concern> is characterized as the nouns related to the mental attitude of person who see.(1) At first, the word-field of the nouns expressing <관심> is characterized as <positive concern> and <negative concern>.(2) <positive concern> is characterized as <good will> and <ill will>.(3) <negative concern> is characterized as <only watching> and <look on unconcerned>.