(electronics) diode (rectifier tube)

electric current

two, 2 / second

(electronics) pentode (vacuum tube)

to flow / to release / to cancel / to flush (something) down the toilet / to play (music) / (usually in the passive) to exert influence over someone's immediate actions

flowing, running, draining / sink, drain, basin / draining floor (in a bathhouse) / washing the clients' backs in bathhouses, or someone who does so

pipe / a wind instrument

pole (eg. North Pole); extremity, zenith / quindecillion

very, extremely

10⁴⁸, quindecillion