<synset id="n13317269" type="n">
<lex_filenum>21<lex_filenum/>
<word lex_id="0">tonnage<word/>
<word lex_id="0">tunnage<word/>
<word lex_id="0">tonnage duty<word/>
<pointer refs="n13315999">Hypernym<pointer/>
<def>a tax imposed on ships that enter the US<def/>
<def>based on the tonnage of the ship<def/>
<synset/>