In[]:=
WordData["example","SyllableCount"]
WordData
:SyllableCount is not a known property for WordData. Use WordData​[Properties] for a list of properties.
Out[]=
WordData[example,SyllableCount]
In[]:=
WordData["Properties"]
Out[]=
{AmericanSpelling,Antonyms,BaseAdjective,BaseForm,BaseNoun,BritishSpelling,BroaderTerms,CausesTerms,CompositeTerms,ConceptWeight,ConsequencesTerms,Definitions,DerivedAdjectives,DerivedAdverbs,EntailedTerms,Examples,GeographicDomain,Hyphenation,InflectedForms,MaterialTerms,MorphologicalDerivatives,MorphologicalSource,NarrowerTerms,PartsOfSpeech,PartTerms,PhoneticForm,PorterStem,SentenceFrames,SimilarAdjectives,SimilarVerbs,SubsetTerms,SupersetTerms,Synonyms,UsageField,UsageType,WholeTerms,WordNetID}