Corrections:

gu.na.m should be gu.no and probably mana.m should be mano if it
refers to mind. Some of the other words ending in the neuter nom.
sing. -a.m may also be incorrect: nissatta.m, ~neyya.m,
paccayuppanna.m in that they can be adjectives and it's not exactly
clear to me what their genders are as nouns.

> 23 meanings of 'dhammo':
>
> gu.na.m, desanaa, pariyatti/paavacana.m,
> nissatta.m/nissattataa/nijjiivataa, sacca.m, sabhaavo, samaadhi,
> pa~n~naa, pakati, pu~n~na.m, aapatti, ~neyya.m, pa~n~natti, vikaaro,
> hetu/paccayo, paccayuppanna.m, yutti, visayo, nibbaana.m, maggo,
> jaati, mana.m, bhaavo.

Jim