This could be isolation, which more technically means set apart as an individual or group.
Kiln
This is a commuter.
Aquarium
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
You would probably park them at an oasis, or watering hole.
The word metalworking is one word.
eat, use
The word that works is idiot.
what word can I substitute for constitutes
Good that can be used in place of another good.