RISE- ARISE- RAISE- AROUSE

RISE    ROSE   RISEN  intransitive verb. It means Get higher, come or go up. 

                                            Prices keep rising

                                            What time does the sun rise?

ARISE  AROSE  ARISEN intransitive verb. It means. Begin, appear, come to one`s notice. Mostly used with abstract nouns as subjects such as situation, difficulty, problem,question, opportunity.

                                         A discussion arose about the best way to pay.

                                         A new difficulty has arisen

RAISE   RAISED   RAISED transitive verb. It means Move something up, lift up. 

                                         He raised his glass to his lips

AROUSE   AROUSED   AROUSED transitive verb.It means Awaken, cause to become active. Often used with abstract nouns as objects such as interest, attention,suspicion, sympathy,feelings.

                                          His behaviour aroused our suspicion.

It can also be used with a sexual meaning: to be sexually excited.

                                          He was aroused by the picture of a naked woman

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