Question

What are some synonyms for one and another?
Writeacher
Do you mean when they are used together ... as in "the sisters were always with one another on the playground" -- or what?

You can always go into http://www.thesaurus.com to look them up. But you need to know if you are looking for them as nouns or as adjectives.

http://thesaurus.reference.com/browse/another

http://thesaurus.reference.com/browse/one

Be sure to re-post if none of this is what you meant.