GET ON BOARD is a phrase that is used to encourage someone to join a group or activity. The crossword solutions for this term are EMBARK (6 letters), ENTRAIN (7 letters), SURF (4 letters), LADE (4 letters), ENPLANE (7 letters), and JOINTHECLUB (11 letters). EMBARK means to board a ship, ENTRAIN means to board a train, SURF means to ride a wave, LADE means to load something onto a vehicle, ENPLANE means to board an airplane, and JOINTHECLUB means to join a group or organization. All of these words can be used to describe the phrase GET ON BOARD.