chard hcard cahrd achrd hacrd ahcrd chrad hcrad crhad rchad hrcad rhcad carhd acrhd crahd rcahd archd rachd harcd ahrcd hracd rhacd arhcd rahcd chadr hcadr cahdr achdr hacdr ahcdr chdar hcdar cdhar dchar hdcar dhcar cadhr acdhr cdahr dcahr adchr dachr hadcr ahdcr hdacr dhacr adhcr dahcr chrda hcrda crhda rchda hrcda rhcda chdra hcdra cdhra dchra hdcra dhcra crdha rcdha cdrha dcrha rdcha drcha hrdca rhdca hdrca dhrca rdhca drhca cardh acrdh cradh rcadh arcdh racdh cadrh acdrh cdarh dcarh adcrh dacrh crdah rcdah cdrah dcrah rdcah drcah ardch radch adrch darch rdach drach hardc ahrdc hradc rhadc arhdc rahdc hadrc ahdrc hdarc dharc adhrc dahrc hrdac rhdac hdrac dhrac rdhac drhac ardhc radhc adrhc darhc rdahc drahc
Note: these 'words' (valid or invalid) are all the permutations of the word chard. These words are obtained by scrambling the letters in chard.