question, problem on homework etc. / a question; a matter (of time etc.) / a problem (something that needs to be dealt with); a trouble / an issue; a matter

interval / during

while; during

interval / space / time / room / gap / pause

letter challenging someone to a duel

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

suffixes some expressions of time to tell duration rather than time or date

between / intervening space / interval / gap / pause

gender role

(linguistics) "role language": unique language usage serving as a marker of social identity in fictional speech