Wordnet 3.0
NOUN (1)
1.
an independent agency of the federal government responsible for mail delivery (and sometimes telecommunications) between individuals and businesses in the United States;
[syn: United States Post Office, US Post Office, Post Office, PO]
WordNet (r) 3.0 (2006):
United States Post Office
n 1: an independent agency of the federal government responsible
for mail delivery (and sometimes telecommunications)
between individuals and businesses in the United States
[syn: United States Post Office, US Post Office, Post
Office, PO]