>558 lines

deleting the Is, IIs, As, Bs, etc. (which are merely groupings) would still leave a bit too many; I will have to remain skeptical I guess.

(here's the way the headwords break down, these numbers are easily arrived at from the entry maps:
n[1] 33
n[2] 15
a 1
ppl 10
v[1] 157
v[2] 1
conj 1
this totals to only 218)