짝수 (jjakssu) means “even number” | MotiTan Korean Dictionary

More examples

이번 달에는 짝수일에만 모임이 있어요.i beon ta re neun jjak ssu i re man mo i mi i sseo yo

This month, we meet only on even-numbered days.

A number that divides into complete pairs with nothing left over.

2의 배수2ui paesu: A number equal to two times a whole number.
홀수holsu: A number that leaves one after division by two.

두 개씩 묶어 떨어지는 수.tu kae ssik mu kkeo tteo reo ji neun su

짝수 (jjakssu, "even number") combines 짝 (jjak, "pair") with 수 (ssu, "number"), linking the word directly to grouping numbers in pairs.

English even has several meanings, so connecting it with complete pairs helps learners remember its mathematical meaning in this word.