An unmarried (single) woman was once called a spinster, but this has assumed connotations of age or unsuitability. A term now used informally in the US is bachelorette.
bride
The word is cohabitation.
There is no one-word substitute in English for "son-in-law."
The word you want is florist.
Sportsmanship is a word substitute for spirit of game
The word metalworking is one word.
eat, use
The word that works is idiot.
what word can I substitute for constitutes
Elevate
There isn't a girl married to any of the One Direction boys.
Traditionalist