Pronunciation: (&thslash;ō), [key]
1. (used in introducing a subordinate clause, which is often marked by ellipsis) notwithstanding that; in spite of the fact that; although: Though he tried very hard, he failed the course.
2. even if; granting that (often prec. by even).
3. as though, as if: It seems as though the place is deserted.
for all that; however.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.