unary operator (operator taking one operand)

(mathematics, computing) operand

(mathematics) A procedure for generating a value from one or more other values; operation.

to calculate

interval / during

a target, a mark, a bullseye / an objective, an object (of doing something)

while; during

as far as ... is concerned; in terms of ...

interval / space / time / room / gap / pause

space; interval; among; between / extent; scope / hidden; invisible / Alternative spelling of 閑 (kan, “free time”)