In some Japanese textbooks, the term -u verb (or u-verb) means the same thing as a godan verb. Such verbs always end in the ~u vowel in their nonpast form (or dictionary form, shuushikei 終止形), however, they aren't the only ones to do so: ALL Japanese verbs end in the ~u vowel, including, for example, ichidan verbs (-ru verbs), which aren't -u verbs, so not all verbs that end in the ~u vowel are actually -u verbs, making the term extremely confusing for lots of people trying to learn Jap...
