participate in / take part in / join / attend

upper, over

the start / a high place; the top / one with higher rank

【Conjunction】after; on the basis of; upon

尿: urine / 繞: Chinese character radical that covers the left and bottom of a Chinese character

手錠: handcuffs

連声: a morphological change of an initial syllable of the second kanji under the influence of the historical coda of the first kanji in a word

二乗: squaring

二条:

二乗: square