Describe a website that you use often

The website I'd like to talk about is an online English dictionary that I use almost every day. I first started using it about four years ago, when a teacher recommended it during an English class, and since then it's become one of my most-visited websites.

I mainly use it when I'm reading or studying and I come across a word I don't know. What I like is that it gives much more than a simple definition. For each word, there are clear example sentences, a note on whether it's formal or informal, and a small speaker button so you can hear the pronunciation in both British and American accents. That feature has been really helpful, because there are many English words whose spelling gives you no idea how to pronounce them.

It also has a thesaurus section, which I use a lot when I'm writing essays, because I tend to repeat the same words, like 'important' or 'good'. And there's a word-of-the-day feature on the home page. I don't always remember those words, but occasionally one of them turns out to be useful, and I feel quite pleased when I manage to use it in a conversation.

I'd say it's useful for two reasons. First, it's saved me a huge amount of time compared with using a paper dictionary. Second, it's helped me become more independent as a learner, because I don't have to ask a teacher every time I'm unsure about a word.

The only thing I don't like is that there are quite a lot of adverts, but since it's completely free, I think that's a fair price to pay.