C3E1N1T1E1R1B3O1A1R1D2
16 points
CENTERBOARD is validvalid
a retractable keel that pivots or swings into position below a sailboat [n CENTERBOARDS]
a retractable keel used esp. in sailboats, also CENTREBOARD [n -S]
a retractable keel that pivots or swings into position below a sailboat [n CENTERBOARDS]
a retractable keel used esp. in sailboats, also CENTREBOARD [n -S]