学生【がくせい】
student (esp. a university student)
大学【だいがく】
university, college, former imperial university of Japan (established under the ritsuryō system for the training of government administrators), the Great Learning (one of the Four Books)
学校【がっこう】
school
学部【がくぶ】
department of a university, undergraduate (course, program, etc.)
医学【いがく】
medical science, medicine
文学【ぶんがく】
literature
科学【かがく】
science
学園【がくえん】
educational institution, school, academy, campus
中学生【ちゅうがくせい】
junior high school student, middle school pupil
学習【がくしゅう】
study, learning, tutorial
中学【ちゅうがく】
junior high school, middle school, lower secondary school
小学校【しょうがっこう】
primary school, elementary school, grade school
学者【がくしゃ】
scholar, academic, scientist, learned person, person of learning
学会【がっかい】
learned society, scientific society, academy, academic meeting, academic conference
大学院【だいがくいん】
graduate school
中学校【ちゅうがっこう】
junior high school, middle school, lower secondary school
小学生【しょうがくせい】
elementary school student, primary school student, grade school student
入学【にゅうがく】
admission (to a school or university), entrance, enrolment, enrollment, matriculation
化学【かがく】
chemistry
留学【りゅうがく】
studying abroad, (temporarily) studying at another school (to learn a specific skill)