It's become a habit of mine to have a cup of coffee after dinner.
It was their habit to dine at 7 every evening.
Word: "habit"
the same meaning

When bending the elbow the biceps are the agonist.
When bending the elbow the biceps are the agonist.
Word: "agonist"
the same meaning

To set glass in a sash.
To set a precious stone in a border of metal.
Word: "set"
the same meaning

I wish I could undo my actions.
Fortunately, we can undo most of the damage to the system by the war.
Word: "undo"
the same meaning