A woman who can be expected to keep or follow through with her promises or intentions; a truthful, trustworthy, or reliable person. (Masculine: "man of his word.") Bob, I'm a woman of my word. If I tell you I'll be at your house tomorrow morning at 10, then that's when I'll be there. I've found Mary to be a woman of her word so far, so I'm confident she'll get us the best deal possible.