From English-日本語 (にほんご) FreeDict+WikDict dictionary ver. 2022.11.18:
class //klas// //kleəs// //klæs// //klɑ(ː)s// //klɑːs// <n>
1. クラス, 階級 2.
category of seats in an airplane, train or other means of mass transportation
3.
object-oriented programming: set of objects possibly differing in state but not behavior
4.
admirable behavior; elegance
5.
division of society into classes
2. クラス, 学級
group of students in a regularly scheduled meeting with a teacher
3. 学年, クラス
group of students who commenced or completed their education during a particular year
4. 種類, 等級, クラス
group, collection, category or set sharing characteristics or attributes
5. 授業
series of classes covering a single subject
6. 集合, クラス
set theory: collection of sets definable by a shared property
7. 階級, 階層, クラス
social grouping, based on job, wealth, etc.
8. 綱, クラス
taxonomy: classification below Phylum and above Order