开心kāixīn 1.心情快乐舒畅{exult; feel happy; rejoice}: 同志们住在一起,说说笑笑,十分～。{The comrades felt real happy living under the same roof and talking and laughing merrily together.} 2.戏弄别人,使自己高兴{amuse oneself at sb.'s expense; make fun of sb.}: 别拿他～。{Don't make fun of him!}