Pronunciation of w at the end of a word - and what does ʊ mean?
On that symbol. It's here:
http://dictionary.cambridge.org/help/phonetics.html
that symbol is the short vowel "u" of "foot" and "book."
See also:
http://my-english-blackboard.blogspot.ca/2014/12/british-english-vowels.html
http://my-english-blackboard.blogspot.com.es/p/pronunciation-tips-u-and.html