a surname

be available, be not busy

accelerator pedal, throttle (the lever or pedal that controls this valve)

(figure skating) axel jump

hateful language, oath, abusive words

action

Alternative form of 開く / open one's eyes or mouth / for one's collar etc. to be open

a reaction (action in response to an event)

red line / (historical) Short for 赤線地帯(あかせんちたい) (akasenchitai): Akasen (districts in Japan where prostitution and the sex industry flourished)

one's beloved child