This is the 918th most frequent Japanese word.
知識
Knowledge.
Here, 知識 (chishiki) is used to denote accumulated understanding or information that someone has in a specific area.
彼女はその分野の知識が豊富です。
She has extensive knowledge in that field.
In this sentence, 知識 (chishiki) refers to the information and learning one gains through education.
学校で知識を蓄えることは重要です。
Acquiring knowledge at school is important.
In this usage, 知識 (chishiki) implies a desire to increase understanding and familiarity with innovative advancements.