DuckCorp Dico

Found one definition

1.                 From en.wiktionary.org:
                   
   
   
                   
                     
   
   ** English
   
   *** Etymology
   From the [en] and Jewish surname, spelling variant of [en].
   
   *** Proper noun
   [s]
   
    1. [en] .
    2. * [en]
   **** Statistics
   
    - According to the 2010 United States Census, _Pfeifer_  is the 3533 <sup> rd </sup>  most common surname in the United States, belonging to 10109 individuals. _Pfeifer_  is most common among White (94.18%) individuals.
   *** Anagrams
   
    - [en]
   ** German
   
   *** Etymology
   [de]
   
   *** Pronunciation
   
    - [de]
    - [de]
    - [de]
   *** Noun
   [m]
   
    1. piper
   **** Declension
   [m]
   
   *** Further reading
   
    - [R:de:Duden]