greatest (
http://definr.com/greatest)
adj 1: not to be surpassed; "his top effort" [syn:
top]
2: greatest in size of those under consideration [syn:
biggest,
largest]
3: greatest in importance or degree or significance or
achievement; "our greatest statesmen"; "the country's
leading poet"; "a preeminent archeologist" [syn:
leading(a),
preeminent]
4: most of; "spoke for the greatest part of an hour"
5: highest in quality [syn:
sterling(a),
superlative]