7 letter words:
taxicab18,
6 letter words:
ataxic15,
5 letter words:
abaci9,
4 letter words:
taxa11,
taxi11,
acta6,
bait6,
3 letter words:
tax10,
cab7,
aba5,
act5,
baa5,
bat5,
bit5,
cat5,
tab5,
tic5,
ait3,
2 letter words:
ax9,
xi9,
ab4,
ba4,
bi4,
aa2,
ai2,
at2,
it2,
ta2,
ti2,