

You could see the shark's fin above the water.
[jə kət ˈsi ðə ˈʃɑrks ˈfɪn əˈbəv ðə ˈwɔtər.]
The goldfish has a damaged fin, so it swims slowly.
[ðə ˈɡoʊldˌfɪʃ həz ə ˈdæmɪdʒd ˈfɪn, ˈsoʊ ɪt ˈswɪmz ˈsloʊli.]
Cut off the fins before you cook the fish.
[ˈkət ˈɔf ðə ˈfɪnz bɪˈfɔr jə ˈkʊk ðə ˈfɪʃ.]
"fin" is in the lesson "Fishes" (Level 14), along with 10 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.