Translation of ploy in Spanish

For each entry, there will be the translations of the dictionary, so if one entry is already included there is no extra value in adding this word and I'd say mark it as an error although it is correct.
The conjugations of verbs are the biggest problem for me. I have never studied Spanish in school, but visited evening classes instead. This year I want to take a full Spanish course.
I want to apologize to you for my late response. It was important for me to meet first with Mr. Kaufler in Zurich and to discuss the situation between the two companies. Now I know more.