Z-1
zero 
[the number meaning none or nothing]
One minus one equals zero.

zoo 
[a place where animals are kept for the public to look at and study]
We saw the new panda at the zoo.

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---------------------
Z-1
zero 
[the number meaning none or nothing]
One minus one equals zero.
1引く1はゼロです。

zoo 
[a place where animals are kept for the public to look at and study]
We saw the new panda at the zoo.
私たちは新しく来たパンダを動物園で見ました。

(c) 2001 Educommons L.P.
http://www.eigozai.com