from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Affording passage in two directions: a two-way street.
- adj. Moving in two directions: two-way traffic.
- adj. Permitting communication in two directions: a two-way radio.
- adj. Permitting flow in two directions: a two-way valve.
- adj. Expressive of or involving mutual action, relationship, or responsibility.
- adj. Involving two participants: a two-way treaty.
- adj. Sports Playing both offense and defense well: a two-way player.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. allowing traffic in two directions
- adj. moving in both directions
- adj. permitting communication in two directions
- adj. involving the mutual action or participation of two parties
- adj. Playing both offense and defense in the same game
from the GNU version of the Collaborative International Dictionary of English
- adj. Serving to connect at will one pipe or channel with either of two others.
from The Century Dictionary and Cyclopedia
- Having the capacity to act in two ways: said of a fitting or fixture which has one inlet and one outlet.
- Noting a fitting resembling a T, with one inlet and two outlets, but no control over the flow through them.
- In mech., having two ways or passages.
- In mathematics, having a double mode of variation. Thus, a surface is a two-way spread.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. involving two parts or elements
- adj. supported by both sides
- adj. operating or permitting operation in either of two opposite directions
From two- + way. Compare Old English twiweġ ("intersection, junction of two roads"). (Wiktionary)