

My brother is seventeen next month.
[ˈmaɪ ˈbrəðər ˈɪz ˌsɛvənˈtin ˈnɛkst ˈmənθ.]
Our house is number seventeen.
[ɑr ˈhaʊs ˈɪz ˈnəmbər ˌsɛvənˈtin.]
Are you seventeen or eighteen?
[ər ˈju ˌsɛvənˈtin ɔr ˌeɪtˈtin?]
"seventeen" 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.