Can I use the words "client" or "customer" interchangeably?

What does it mean... "Not a dry eye in the house". It is the name of a song performed by Meat Loaf.

What's the difference between shed tears, cry and weep? which situations do you use each of them in?

What's the difference between grieving, mourning and regretting? When do you use each of them?

My first notebook entry I've been learning English for several years. I've taken a couple of courses, had private classes with particular teachers, written hundreds of emails and read many pieces of texts. I've even attended to meetings spoken in English at previous jobs. However, I'm not fluent in English so far. I've only lived in places where Spanish is the common language so that I had few opportunities to practice my speaking skills. Besides, people can understand what you mean but the most of the times they won't correct you when you make a mistake, so you really never know how good you are. I hope I can find many nice partners on itaki to help each other to achieve our goals on learning other languages.