奉仕
ほうし · houshi · JLPT N1 · noun
service
奉 = offer respectfully + 仕 = serve, so 奉仕 = service
Note: 奉仕 means service or volunteer work, not attendance (that is 出席). 奉 is offering something up with both hands, and 仕 is serving someone, so the whole word is giving yourself in service to others.