Practice; exercise; drill — repetitive training or practice performed to learn or improve a skill.
数学の演習問題を毎日解いている。
I solve practice math problems every day.
文法を理解したら、演習で使い方を身につけよう。
Once you understand the grammar, learn how to use it through exercises.
この教科書には演習が豊富に載っている。
This textbook contains plenty of exercises.
Military exercise; manoeuvres; drills — organized training operations (often for the military or disaster preparedness).
自衛隊は海外で合同演習を行っている。
The Self-Defense Forces are conducting joint exercises overseas.
地震を想定した避難演習に全校生徒が参加した。
All the students took part in an evacuation drill simulating an earthquake.
Seminar — a class or session, often small and discussion/practical-based.
大学の演習で資料の読み方を学んだ。
In the university seminar I learned how to read the materials.
演習では学生同士の発表と議論が中心だ。
The seminar focuses on student presentations and discussions.