sib

n 1: a person's brother or sister [syn: {sibling}]

2: one related by blood or origin; especially on sharing an

ancestor with another [syn: {blood relation}, {blood

relative}, {cognate}]

SIPB

Student Information Processing Board, {MIT}.

{(http://www.mit.edu:8001/afs/athena.mit.edu/user/r/e/rei/WWW/GAME/sipb