Semivowels are a type of approximant consonant, which sound like vowels if you pronounced them alone. However, many languages use them as consonants. Here are the common semivowels in the International Phonetic Alphabet.
s ɛ m ɪ v aʊ ə l z WORD_BOUNDARY ɑ ɹ WORD_BOUNDARY ʌ WORD_BOUNDARY t aɪ p WORD_BOUNDARY ʌ v WORD_BOUNDARY ʌ p ɹ ɑ k s ɪ m ə n t WORD_BOUNDARY k ɑ n s ə n ə n t WORD_BOUNDARY w ɪ t̠ʃ WORD_BOUNDARY s aʊ n d WORD_BOUNDARY l aɪ k WORD_BOUNDARY v aʊ ə l z WORD_BOUNDARY ɪ f WORD_BOUNDARY j uː WORD_BOUNDARY p ɹ ə n aʊ n s t WORD_BOUNDARY ð ɛ m WORD_BOUNDARY ʌ l oʊ n WORD_BOUNDARY h aʊ ɛ v ə ɹ WORD_BOUNDARY m ɛ n i WORD_BOUNDARY l æ ŋ ɡ w ɪ d̠ʒ ɪ z WORD_BOUNDARY j uː s WORD_BOUNDARY ð ɛ m WORD_BOUNDARY æ z WORD_BOUNDARY k ɑ n s ə n ə n t s WORD_BOUNDARY h ɪ ɹ WORD_BOUNDARY ɑ ɹ WORD_BOUNDARY ð ə WORD_BOUNDARY k ɑ m ə n WORD_BOUNDARY s ɛ m ɪ v aʊ ə l z WORD_BOUNDARY ɪ n ð ɪ WORD_BOUNDARY ɪ n t ə ɹ n æ ʃ ə n ə l WORD_BOUNDARY f ə n ɛ t ɪ k WORD_BOUNDARY æ l f ə b ɛ t WORD_BOUNDARY