radii ardii rdaii draii adrii darii raidi aridi riadi iradi airdi iardi rdiai driai ridai irdai dirai idrai adiri dairi aidri iadri diari idari radii ardii rdaii draii adrii darii raidi aridi riadi iradi airdi iardi rdiai driai ridai irdai dirai idrai adiri dairi aidri iadri diari idari raiid ariid riaid iraid airid iarid raiid ariid riaid iraid airid iarid riiad iriad riiad iriad iirad iirad aiird iaird aiird iaird iiard iiard rdiia driia ridia irdia diria idria rdiia driia ridia irdia diria idria riida irida riida irida iirda iirda diira idira diira idira iidra iidra adiir daiir aidir iadir diair idair adiir daiir aidir iadir diair idair aiidr iaidr aiidr iaidr iiadr iiadr diiar idiar diiar idiar iidar iidar
Note: these 'words' (valid or invalid) are all the permutations of the word radii. These words are obtained by scrambling the letters in radii.