Meaning: He could tell that the bus was coming to a stop.
Choice of Words:Felt means to experience a physical sensation. Slow down means to reduce speed.
Alternative Expressions
He sensed the bus decelerating.
Meaning: This means that the person could tell that the bus was slowing down.
Choice of Words:Sensed is a verb that means to become aware of something through your senses. Bus is a noun that refers to a large vehicle that transports people. Decelerating is a verb that means to slow down.
He noticed the bus losing speed.
Meaning: This means that the person could see that the bus was going slower.
Choice of Words:Noticed is a verb that means to become aware of something. Bus is a noun that refers to a large vehicle that transports people. Losing is a verb that means to no longer have something. Speed is a noun that refers to how fast something is moving.