<synset id="n03990210" type="n">
<lex_filenum>06<lex_filenum/>
<word lex_id="0">Post-Office box<word/>
<word lex_id="0">PO Box<word/>
<word lex_id="0">POB<word/>
<word lex_id="1">call box<word/>
<word lex_id="2">letter box<word/>
<pointer refs="n03080309">Hypernym<pointer/>
<def>a numbered compartment in a post office where mail is put to be called for<def/>
<synset/>