booster seat 
(also booster cushion)
noun
An extra seat or cushion placed on an existing seat for a small child to sit on.A booster seat helps the seat belt fit better for older children who are not big enough for the safety belt alone....
- Many parents incorrectly believe that their child is too old for a child seat or a booster seat.
- A belt-positioning booster seat will help position the seat belts on your child's body and will fit your child until she weights about 60-80 pounds.
- fall to
- fall to pieces
- fall to someone's lot
- fall victim to
- Falmouth
- false
- false acacia
- false alarm
- false arrest
- false bedding
- false bottom
- false card
- false colour
- false consciousness
- false coral snake
- false cypress
- false dawn
- false economy
- false face
- false friend
- false fruit
- false gharial
- false-hearted
- false hellebore
- false helleborine