Synonyms for Romp (same or very similar meaning)
WordNet sense 1 (a girl who behaves in a boyish manner):
hoyden, tomboyWordNet sense 2 (an easy victory):
blowout, runaway, shoo-in, walkaway, laugherWordNet sense 3 (play boisterously):
cavort, disport, frisk, frolic, gambol, lark, rollick, skylark, sport, lark aboutWordNet sense 4 (gay or light-hearted recreational activity for diversion or amusement):
caper, playFrom the ODE community, based on WordNetadd/edit