

An octopus has eight long arms.
[ən ˈɑktəˌpʊs həz ˈeɪt ˈlɔŋ ˈɑrmz.]
Did you see the octopus change colour?
[ˈdɪd jə ˈsi ðə ˈɑktəˌpʊs ˈtʃeɪndʒ ˈkələr?]
The divers found two octopuses hiding in a cave.
[ðə ˈdaɪvərz ˈfaʊnd ˈtu ˈɑktəˌpʊsəz ˈhaɪdɪŋ ˈɪn ə ˈkeɪv.]
"octopus" is in the lesson "Sea world" (Level 15), 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.