Meaning: This sentence describes the abrupt end of the rainfall.
Choice of Words: "The rain" is the subject, "stopped" is the verb, and "suddenly" is an adverb describing the manner in which the rain ceased.
Alternative Expressions
The rain ceased abruptly.
Meaning: This sentence means the same as the first sentence, but it uses a different word to describe the ending of the rain.
Choice of Words: The word ceased is a more formal way of saying stopped. It means to come to an end or to discontinue.
The downpour terminated unexpectedly.
Meaning: This sentence means the same as the first sentence, but it uses different words to describe the rain and its ending.
Choice of Words: The word downpour is a noun that refers to a heavy rainfall. Terminated is a verb that means to end or to bring to a conclusion. Unexpectedly is an adverb that means without warning or preparation.