This is the 303rd most frequent Korean word.
접종
"Injection" or "vaccination."
접종 here refers to the administration of a vaccine to prevent illness.
의사는 독감 예방 접종을 권유했습니다.
The doctor recommended getting a flu vaccination.
접종 in this context emphasizes the act of being vaccinated as a formal requirement.
학교에서는 모든 학생들이 접종을 받을 것을 요구했습니다.
The school required all students to receive vaccinations.
접종 highlights the recent action of getting vaccinated and its effect.