Common words. Prefixes, suffixes, particles, and forms of the copula are excluded.

i stomach (organ)
û cormorant
e handle (of a tool)
ê picture, painting, drawing (but never a photograph)
ô tail
family (taxonomy); department; course of study
lesson (in textbook); section (of company, bureau)
ka mosquito
ga moth
tree; wood
ki heart, mind, feeling;
care, concern;
intention, inclination;
temper, disposition;
consciousness, one's senses
nine
ward (part of city)
ke hair, fur; wool
ko child; young (of an animal)
go (the game)
five
word
sa difference, disparity, gap
four
city
death
si poem, poetry
letter, character (in writing system)
nest; web; hive
vinegar
zu figure, diagram, illustration
back (of the body); height, stature
rice field, rice paddy
other, another (noun usually followed by の or に)
ti blood
hand; arm; means, method
to door
na name
two
root
blade; blade edge
tooth
ha leaf; blade (of grass)
ba place; occasion, time; scene (in play)
fire
hi the sun, sunshine; day
hu prefecture (used for Kyoto and Osaka prefectures)
part, portion; division, department
sail (of boat)
ear (of grain)