uspokajać ?:

I was nervous on my first day at college, but I was reassured to see some friendly faces.

Police have reassured the public that the area is now perfectly safe.

He reassured me (that) my cheque would arrive soon. She checked the bolts to reassure herself that the door was locked.

He pacified his crying child with a bottle and lollipop. It was difficult for the police to pacify the angry crowd.

He pacified his crying child with a bottle. It was difficult for the police to pacify the angry crowd.