n. (c./u.)名詞 (可數/不可數)世界;地球This world is always changing
n. (c./u.)名詞 (可數/不可數)世界The political world was shocked by the president's sudden resignation
n. (c./u.)名詞 (可數/不可數)世界The world is round.
n. (c./u.)名詞 (可數/不可數)宇宙Scientists are exploring the possibility of life on other planets in the world.
n. (c./u.)名詞 (可數/不可數)領域The business world is highly competitive.