Q: Does the word "vehicle" mean the same thing in "A congregation is a vehicle of group identity." and "The play was just a vehicle to display her talents."?

A: the same meaning

Q: Does the word "now" mean the same thing in "It worked up to right now." and "Now is the right time."?

A: the same meaning

Q: Does the word "slit" mean the same thing in "He slit the bag open and the rice began pouring out." and "Slit the throat of the victim."?

A: the same meaning

Q: Does the word "agonist" mean the same thing in "When bending the elbow the biceps are the agonist." and "Acetylcholine is an agonist at the a cholinergic receptor."?

A:
different meanings