I. | ̷ ̷ ̷ ̷| ̷ ̷ adjective
1. : being number 43 in a countable series
the forty-third day
— see number table
2. : being one of 43 equal parts into which something is divisible
a forty-third share of the money
II. noun
1. : number 43 in a countable series
2. : the quotient of a unit divided by 43 : one of 43 equal parts of something
one forty-third of the total