

"Happy birthday!" the children chorused as she walked in.
[ˈhæpi ˈbɜrθˌdeɪ! ðə ˈtʃɪldrən ˈkɔrəst əz ʃi ˈwɔkt ˈɪn.]
Fans were still chorusing the band's name long after the concert.
[ˈfænz wər ˈstɪl ˈkɔrəsɪŋ ðə ˈbændz ˈneɪm ˈlɔŋ ˈæftər ðə ˈkɑnsərt.]
Everyone chorused "Cheers!" as the glasses clinked together.
[ˈɛvriˌwən ˈkɔrəst "ˈtʃɪrz!" əz ðə ˈɡlæsəz ˈklɪŋkt təˈɡɛðər.]
"chorus" is in the lesson "Verbs 13" (Level 25), along with 11 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.