working girl

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun Often Offensive A woman who is employed outside the home.
• noun Slang A woman prostitute.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun uncommon A young woman who works.
• noun idiomatic, euphemistic A prostitute.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a young woman who is employed
• noun a woman who engages in sexual intercourse for money