The word "sends river" is spelled as it sounds, with no complicated phonetic rules to follow. In IPA (International Phonetic Alphabet), the word is transcribed as /sɛndz ˈrɪvər/. The first syllable is pronounced like "send", with a short "e" sound and a voiced "d" sound. The second syllable is pronounced with a short "i" sound and a voiced "z" sound. Finally, the word ends with the word "river", which is pronounced as it is spelled with a short "i" sound and a voiced "r" sound.