WordNet (r) 3.0 (2006):

fill the bill
    v 1: be what is needed or be good enough for what is required;
         "Does this restaurant fit the bill for the celebration?"
         [syn: fit the bill, fill the bill]

Moby Thesaurus II by Grady Ward, 1.0:

52 Moby Thesaurus words for "fill the bill":
   advance, advantage, answer, avail, be OK, be equal to, be handy,
   be of use, be right, bear, befit, befitting, benefit, bestead, do,
   do it, do the job, do the trick, fit, forward, fulfill, get by,
   give good returns, go around, hack it, hold, just do,
   make the grade, meet, meet requirements, not come amiss, pass,
   pass muster, pay, pay off, profit, promote, qualify, reach, relate,
   satisfy, serve, serve the purpose, stand, stand up, stretch,
   suffice, suit, suit the occasion, take it, work, yield a profit