orcas rocas ocras coras rcoas croas oracs roacs oarcs aorcs raocs arocs ocars coars oacrs aocrs caors acors rcaos craos racos arcos caros acros orcsa rocsa ocrsa corsa rcosa crosa orsca rosca osrca sorca rsoca sroca ocsra cosra oscra socra csora scora rcsoa crsoa rscoa srcoa csroa scroa orasc roasc oarsc aorsc raosc arosc orsac rosac osrac sorac rsoac sroac oasrc aosrc osarc soarc asorc saorc rasoc arsoc rsaoc sraoc asroc saroc ocasr coasr oacsr aocsr caosr acosr ocsar cosar oscar socar csoar scoar oascr aoscr osacr soacr asocr saocr casor acsor csaor scaor ascor sacor rcaso craso racso arcso carso acrso rcsao crsao rscao srcao csrao scrao rasco arsco rsaco sraco asrco sarco casro acsro csaro scaro ascro sacro
Note: these 'words' (valid or invalid) are all the permutations of the word orcas. These words are obtained by scrambling the letters in orcas.