WordNet (r) 3.0 (2006):

way out
    n 1: an opening that permits escape or release; "he blocked the
         way out"; "the canyon had only one issue" [syn: exit,
         issue, outlet, way out]

Moby Thesaurus II by Grady Ward, 1.0:

106 Moby Thesaurus words for "way out":
   Bohemian, a la mode, a mile off, advanced, alternative,
   at the height, at the limit, avant-garde, avenue, away off, beat,
   blowhole, breakaway, channel, choice, chute, contemporary, debouch,
   door, egress, emunctory, escape, escape clause, escape hatch,
   estuary, exhaust, exit, extreme, far from it, far other, far out,
   fashionable, floodgate, flume, forward-looking, free and easy,
   fringy, furthest, greatest, heretical, heterodox, hippie, in,
   informal, kinky, loophole, maverick, mod, modern, modernistic,
   modernized, modish, most, newfashioned, no such thing, not cricket,
   not done, not kosher, nothing like, now, offbeat, opening,
   original, out, outcome, outfall, outgate, outgo, outlet, pore,
   port, present-day, present-time, pretext, progressive,
   quite another thing, radical, sally port, saving clause, sluice,
   something else, something else again, spiracle, spout, streamlined,
   tap, too much, twentieth-century, ultra, ultra-ultra, ultramodern,
   unconventional, unfashionable, unorthodox, up-to-date,
   up-to-datish, up-to-the-minute, utmost, uttermost, vent, ventage,
   venthole, vomitory, way of escape, way off, weir