Vocabulary consisting only from characters you are able to read
観察
kansatsu
observation, surveysuru
支障
shishou
obstacle, hindrance, impediment, difficultymix
入手
nyuushu
obtaining, coming to handsuru
明らか
akiraka
obvious, evident, clear, plainmix
自明
jimei
obvious, self-evident, trivial, axiomatic, self-explanatorymix
職業
shokugyou
occupation, businessmix
大洋州
taiyoushuu
Oceania, Pacific Ocean countriesmix
雑用
zatsuyou
odd jobs, miscellaneous, other, etc.mix
具申
gushin
offering a full report to a superiorsuru
供物
kumotsu
offering; offeringmix
係員
kakariin
official (e.g. customs), clerk in chargemix
公表
kouhyou
official announcement, proclamationsuru
係
kakari
official, duty, person in chargemix
古典
koten
old book, classics, classicmix
古老
korou
old people, seniors, elders, old-timermix
幸先
saisaki
omen, sign (usually good)mix
以降
ikou
on and after, as from, hereafter, thereafter, sincemix
仲が悪い
nakagawarui
on bad terms, at loggerheadsmix
近日発売
kinjitsuhatsubai
on sale soon, coming soonmix
一方で
ippoude
on the other handmix
反面
hanmen
on the other hand/(P)leda1
表面的
hyoumenteki
on the surfacemix
次々に
tsugitsugini
one by one, one after another, successivelyjlpt3
一秒
ichibyou
one secondmix
一言
hitokoto
one word, pair of words (short intercession)leda1
念願
nengan
one's heart's desire, earnest petitionsuru
出身校
shusshinkou
one's old school or university, alma mater, the school or university one attendedmix
自説
jisetsu
one's personal opinionmix
所有
shoyuu
one's possessions, ownershipsuru
職場
shokuba
one's post, place of work, workplacemix
平常心
heijoushin
one's self-possession, one's presence of mindmix
真面目な
majime na
one's true character, one's true self, oneself, seriousness, earnestness; one's true character, one's true self, oneself, seriousness, earnestness; (adj-na,n) diligent, serious, honest, sober, grave, mix
自分自身
jibunjishin
oneself, myselfmix
玉ねぎ
tamanegi
onion (edible plant, Allium cepa)mix
大山積命
oohoyamatsumi
oohoyamatsumi, god who rules mountain, sea, and warkami
大分県
ooitaken
Ooita (Oita) prefecture (Kyuushuu)namae
大神
ookami
Ookami, great godkami
大国主
ookuninushi
Ookuninushi, ruler of the unseen world of spirits and magickami
営業中
eigyouchuu
open (e.g. store)mise
原っぱ
harappa
open field/empty lot/plain/(P)leda1
直火
jikabi
open fire, direct heatmix
開放
kaihou
open, throw open, liberalization, liberalisationsuru
開店
kaiten
opening (of a shop)suru
開閉
kaihei
opening and shuttingsuru
開会
kaikai
opening of a meetingsuru
開通
kaitsuu
opening, open, taking effect, becoming activesuru
大作戦
daisakusen
operation, planmix
野党
yatou
opposition party, political opposition, oppositionseiji
反対
hantai
opposition, resistance, antagonism, hostility, contrast, objection, dissension, reverse, opposite, vice versajlpt3, jlpt4, leda1, suru
楽観的
rakkanteki
optimistic, hopefulemo
最適
saiteki
optimum, the most suitablemix
体制
taisei
order, system, structure, set-up, organization, organisationmix
器官
kikan
organ (of body), instrumentmix
団体
dantai
organization, organisation, associationjlpt3
原点
genten
origin (coordinates), starting pointmix