GRE Word : Bulwark

Sachin Tendulkar, the bulwark of Indian Cricket Team.

#(N)

1.Any person or thing giving strong support or encouragement in time of need, danger, or doubt

2.A wall of earth or other material built for defense; rampart.
3.Any protection against external danger, injury, or annoyance for ex. The new dam was a bulwark against future floods.

Synonyms: bastion, citadel, defense, fort , mainstay, protection, rampart, safeguard, stronghold,