

There are eleven players in a football team.
[ˈðɛr ˈɑr ɪˈlɛvən ˈpleɪərz ˈɪn ə ˈfʊtˌbɔl ˈtim.]
I go to bed at eleven.
[aɪ ˈɡoʊ tə ˈbɛd ət ɪˈlɛvən.]
Is your son eleven or twelve?
[ˈɪz jər ˈsən ɪˈlɛvən ɔr ˈtwɛlv?]
"eleven" 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.