optic

mit he aa pehtlaimi thil: e.g. Optic nerve = Mit thahri

optical

mit he aa pehtlaimi; e.g. Optical instrument = Mit zohnak thilri

optician

mit thlalang a ser i a zuartu

optimism

a ttha lei in thil ruahning

optimist

zei thilpaoh a tthalei in a ruatmi

optimistic

hnabeseinak a ngeimi

optimistically

hnabeisei ngaiin

option

duhmi i thim khawhnak

optional

duhmi i thimmi

or

asiloah; e.g. Edith or Mary will go = Edith asiloah Mary a kal lai.
either or = chingchang/asiloah; e.g. Either Edith or Mary will go = Edith asiloah Mary pakhat chingchang an kal lai.