応募[oubo] subscription
応募者[oubosha] applicant
急募[kyuubo] urgent recruit
共同募金[kyoudoubokin] community chest
言募る[iitsunoru] to argue vehemently

公募[koubo] public appeal (e.g. for contributions)
公募債[koubosai] public issue
召募[shoubo] levy
吹き募る[fukitsunoru] to blow harder and harder
募る[tsunoru] to invite contributions, etc.

急度[kitto] surely
オリエント急行[orientokyuukou] Orient express
応急[oukyuu] emergency
応急攻撃[oukyuukougeki] hasty attack
応急渡河[oukyuutoka] hasty crossing

火急[kakyuu] emergency
緩急[kankyuu] pace
危急[kikyuu] emergency
危急存亡[kikyuusonbou] life-and-death matter