8. The information processing device according to claim 1 , further comprising: compound word candidate generation code configured to cause the at least one processor to generate candidates of the compound word from the base word; and compound word determination code configured to cause the at least one processor to determine the compound word from the candidates, wherein the compound word acquisition causes the at least one processor to acquire the compound word determined by the compound word determination code.
8. The information processing device according to claim 1 , further comprising: compound word candidate generation code configured to cause the at least one processor to generate candidates of the compound word from the base word; and compound word determination code configured to cause the at least one processor to determine the compound word from the candidates, wherein the compound word acquisition causes the at least one processor to acquire the compound word determined by the compound word determination code. 10. The information processing device according to claim 8 , wherein the compound word determination code causes the at least one processor to determine the compound word in accordance with the appearance number of the base word appearing in the predetermined storage.