to name; to take a second name or alias
to announce; to boast; to declare
彼は自らを南山と号する。
He styles himself 'Nanzan'.
晩年、画家は松翁と号した。
In his later years, the painter went by the name Shō-ō.
多くの俳人が雅号をもって自らを号している。
Many haiku poets style themselves using an elegant pen name.