浪 （ロウ） person who has spent X years after graduating high school attempting to get admitted to (a specific) university

浪人 （ロウニン） ronin, masterless samurai, high school graduate waiting for another chance to enter university after having failed the yearly entrance examination, person out of work, jobless person, wanderer, drifter

放浪 （ホウロウ） wandering, roaming, drifting

１浪 （イチロウ） failing college entrance exams and retaking them a year later