How to use the once. function in once

w["offer"]="42*7,117*1,155*1";
w["offici"]="69*1,97*1,107*1,133*1,158*2,159*1,178*1,186*1,221*1,236*1,295*1,470*2,484*1,499*1";
w["often"]="328*1";
w["og"]="518*1";
w["ogeth"]="460*2";
w["ointer"]="484*1";
w["ointer."]="484*1";
w["ok"]="521*1";
w["oke"]="42*1";
w["ol"]="451*1";
w["old"]="117*1,181*1,402*2,403*2,407*1,507*1";
w["older"]="56*1,124*1,145*1,204*1,227*1,239*1,365*1,395*1";
w["omit"]="117*2,130*2,156*2,221*2,238*1,402*1,473*2,495*1";
w["omitted."]="117*2,473*2";
w["onc"]="42*1,58*1,132*1,234*2,278*1,288*1,385*1,462*1,518*3";
w["once."]="518*1";
w["once:"]="234*1";
w["ondari"]="402*1";
w["ondit"]="33*1";
w["one"]="6*1,21*1,22*1,26*3,33*1,35*1,39*1,42*4,43*1,56*2,60*1,70*1,71*1,72*1,78*1,86*1,91*1,105*1,107*3,109*3,112*1,116*1,117*1,120*1,124*2,132*2,153*1,155*1,158*1,159*1,163*1,171*1,185*2,196*1,200*1,208*2,210*1,227*1,234*2,237*1,239*1,242*1,249*2,250*1,254*1,257*2,262*1,265*2,268*1,280*1,294*2,306*1,315*1,327*1,334*3,335*2,339*1,340*1,342*3,343*1,354*2,363*1,369*1,375*1,376*1,377*4,382*1,390*1,395*1,397*1,400*1,402*12,403*2,405*1,407*1,413*1,430*1,433*1,440*1,445*1,447*1,458*2,467*1,474*1,478*2,484*2,486*2,492*1,502*1,504*2,506*1,507*3,512*1,518*2,521*1";
w["one-lin"]="200*1,234*1,447*1";
w["one."]="91*1,237*1,402*1,403*2,413*1";
w["onelin"]="107*1,287*1";
w["onerror"]="111*1";
w["ong"]="42*1";
w["onli"]="15*1,17*1,26*2,31*1,33*1,35*1,42*6,58*2,60*1,62*1,70*1,76*1,87*1,97*1,98*1,102*1,109*5,111*1,132*4,138*3,149*1,158*3,165*1,166*1,178*1,182*1,184*1,193*1,212*1,226*1,227*1,234*4,257*1,259*1,264*1,280*2,291*1,306*2,317*1,325*1,326*1,329*2,334*5,343*1,354*2,356*1,357*2,363*2,376*2,385*1,389*1,395*1,402*5,403*2,411*2,415*1,417*1,420*1,422*1,423*1,425*1,445*2,448*1,451*1,455*2,460*2,465*1,470*1,475*1,483*3,484*1,493*1,505*1,509*1,518*3,521*2,523*1";
w["onlin"]="79*1";
w["only."]="35*1,402*1";
w["onsibl"]="402*1";
w["onto"]="402*1,464*1";
w["oo"]="318*1";
w["oop"]="31*1";