diff --git a/Tables/Contraction/en-us-g2.ctb b/Tables/Contraction/en-us-g2.ctb
index 9900789..0520b6c 100644
--- a/Tables/Contraction/en-us-g2.ctb
+++ b/Tables/Contraction/en-us-g2.ctb
@@ -1088,6 +1088,7 @@ before apostrophe word this 1456-24-234 this'll
 word this 1456
 midendword thof 2345-125-12356 Richthofen
 midendword thole = bolthole butthole cathole knothole
+begword threedim 1456-1235-15-15-145-24-134 threedimensional
 word thyself 1456-13456-124
 word thyf =
 always tnam =