What is the meaning of Rasen?

Alternative form of reason (“raising piece”).

to race; to speed (drive faster than permitted) [auxiliary sein]

to rage [auxiliary haben]

Rōmaji transcription of らせん

to rage, to be wild, passionate

to be crazy

to rave, to talk nonsense

definite singular of rase

definite singular of rase

inflection of rasar: third-person plural present subjunctive third-person plural imperative

third-person plural present subjunctive

third-person plural imperative

definite singular of ras c (“race, breed”)

definite plural of ras n (“landslide, cave-in, fall ”)

Source: Wiktionary