教育JLPT-N3
add, addition
くわ
くわえるto appendくわわるto join inくわえるto add one thing to another
げんaddition and subtractionさんparticipationぞうincreaseそくaccelerationそくaccelerationねつheatingついadditionいいげんmoderateこうmanufacturingにゅうbecoming a memberseasoning