How the word "fifteen" is translated into English
The film starts in fifteen minutes.
[ðə ˈfɪlm ˈstɑrts ˈɪn ˌfɪfˈtin ˈmɪnəts.]
My brother is fifteen years old.
[ˈmaɪ ˈbrəðər ˈɪz ˌfɪfˈtin ˈjɪrz ˈoʊld.]
Does this bag really cost fifteen pounds?
[dəz ˈðɪs ˈbæɡ ˈriəli ˈkɔst ˌfɪfˈtin ˈpaʊndz?]
"fifteen" is in the lesson "Numbers" (Level 3), along with 19 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.