let's see; what have we got here

Nothing

which (of three or more) / which one /

today, this day / nowadays

before the day is done

engagement, a promise to marry

an exploit / achievement, meritorious deed, distinguished service / the credit

Kyūjitai form of 楽器 (“musical instrument”)

(derogatory, slang, dated) an unpleasant child, a brat

Senegal (a country in West Africa)