

I want to travel around the world.
[aɪ ˈwɔnt tə ˈtrævəl əˈraʊnd ðə ˈwɜrld.]
It's the biggest city in the world.
[ˈɪts ðə ˈbɪɡəst ˈsɪti ˈɪn ðə ˈwɜrld.]
Is this a map of the world?
[ˈɪz ˈðɪs ə ˈmæp əv ðə ˈwɜrld?]
"world" is in the lesson "Geography" (Level 22), along with 9 other useful words. LinDuo has 180 topic lessons like this one, 2,375 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.