dont forget the honorifics(sama,san and kun).wagatha( understood)
shinjiru(believe)
kami(god)
sora(sky)
yama(maountain)
dama(ball)
ittekkimas(i'm going out)
dai jo bu ka(are you alright?)-"frequent thing in naruto" :p
hai(yes)
nai/chigavu(no/incorrect)
tori(bird)
other words could spring @ any...