寡夫 is read as かふ (kafu) and means widower.
かふ
kafu
widow
かもく
untalkative
かせん
oligopoly
かさく
unprolific (writer, artist, etc.)
かとうせいじ
oligarchy
かせんかかく
oligopoly price
かとうせい
だいじょぶ
great man
じょうぶ
healthy
ぎだゆう
gidayū (type of reciting used in the puppet theater)
したいふ
Chinese scholar-bureaucrat
そういくふう
ingenuity