[例]  He directs our sales operation.

[同义词]  namage, control, run

director (n.) person appointed by shareholders to help manage a company 主管，董事

managing director UK [US Chief Executive Officer] 执行总裁

direct flight flight without transfer 直航

direct mail (n.) selling a product by sending information through the post直接邮寄广告

[例] We have to wait for 2 days if we send it by direct mail.

direct selling (n.) selling directly to a customer without going through any middlemen直销

[例] Direct selling can save a lot of money.

directory  (n.) reference book containing listings目录

[例] a telephone directory, a trade directory

discount 1. (n.) percentage reduction in a full price打折

[例]  You can have 5% discount as a VIP customer.

2. (v.) reduce the full price打折

[同义词]  rebate

disintegration (n) the breaking up of a company or group of companies 解散

[例]At last , the merger of these two big companies comes to disintegration.