here is the list i usually refer to as "new words that are useful to know"
post-pu:
tonsi (nonbinary)
jasima (reflect/polar opposite)
lanpan (steal)
isipin (think)
pre-pu:
misikeke (medicine/help)
leko (block)
monsuta (monster)
kipisi (cut)
powe (fake)
pake (prevent)
kapesi (brown/gray)
majuna (old)
apeja (shame)
these are kinda simple definitions tho so you can check nimi ale pona for these