eng: um

Links
lexical category	interjection
lexical category	noun
pronunciation	http://en.wiktionary.org/wiki/Special:FilePath/en-us-um.ogg
semantically related	eng: centimetre
semantically related	eng: metre
semantically related	eng: micrometer
semantically related	eng: micrometre
semantically related	eng: micron
semantically related	eng: millimetre
semantically related	eng: parallax second
semantically related	eng: rm
semantically related	eng: thickness
synonym	eng: umm
synonym	eng: you know