The term 'SAME PREFIX' refers to the fact that all of the words provided have the same prefix. The prefixes are 'HOMO', 'HOM', 'ISO', 'EQUI', and 'TAUTO'. The words 'HOMO' and 'EQUI' both have four letters, while 'HOM', 'ISO', and 'TAUTO' all have three letters. This indicates that the prefixes for these words are the same, but the suffixes are different. This is an example of how prefixes can be used to create different words with the same meaning.