1. to face (each other); to be facing
川を挟んで二つの町が対している。Two towns face each other across the river.
2. to be directed toward (the future, etc.); to be in response to; to be related to
3. to receive (a client, etc.)
どんな客にも丁寧に対するのが基本だ。The basic rule is to treat every customer politely.
4. to compare with; to contrast with; to be in opposition with; to be opposed to
対して敵はただ一人。The enemy, by contrast, is just one person.
5. to confront; to oppose; to compete with
お前と対することになろうとは。To think it would come to me facing you.