Vocabulary consisting only from characters you are able to read
観察
kansatsu
observation, surveysuru
大部分
daibubun
most part, greater part, majoritymix
通知
tsuuchi
notice, notification, report, postingsuru
生物
seibutsu
biology, living thingsgakkou
二日
futsuka
second day of the month, two daysjlpt5, toki
昨今
sakkon
nowadays, recently; nowadays, recentlytoki