This is the 1247th most frequent Japanese word.
乗せ
"乗せ" means "to place, load, or set something onto something else."
Here, '乗せ' is used to indicate giving someone a ride in a vehicle.
両親が僕を車に乗せて、学校まで送ってくれた。
My parents gave me a ride in the car to school.
In this example, '乗せ' signifies placing or putting something on top of another object.
オムライスに猫の顔を描いたケチャップを乗せました。
I placed ketchup drawn as a cat's face on the omelette rice.
Here, '乗せ' is used to mean setting lyrics or a song onto a melody, implying integration or adaptation.