It is called a house call (sometimes erroneously used as one word).
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
"Squirrels" has two syllables. It is frequently pronounced with one, but it has two.
The word metalworking is one word.
what word can I substitute for constitutes
eat, use
The word that works is idiot.
Elevate
A walker is a pedestrian.
Traditionalist