Meanings

occurring frequently (of a disease, condition, etc.)

prospectus

third train to depart (from now)

second train to depart

supernova explosion

occasional crime

Institute of Nuclear Power Operations

short joke

short joke

World Institute for Development Economics Research

ultrasonic generator

evening departure

invention by an employee

idiopathic

cluster headache

Urban Developers' Association of Japan

underdevelopment

onset

invoking the coercive power of the state

imperial headquarters announcement