Parts
Toki Pona does not have a dedicated word for parts of things. Options include using wan or the preposition lon. The word lawa often refers to a part of something that controls the whole. kipisi, a common nimi ku suli, can describe divisions and parts resulting from them.
Other strategies involve contrasting parts of different size:
wan ijowan ijo
one unit of a thing
lili ijolili ijo
a little of a thing
mute ijomute ijo
much of a thing
ale ijoale ijo
the entirety of a thing
The clearest way to talk of parts is to use full sentences.
ijo lili li tan ijo suli
ijo lili li lon ijo suliijo lili li tan ijo suli
ijo lili li lon ijo suliA small thing is from/in a bigger thing