Metonymy is best defined as a figure of speech in which

Metonymy is best defined as a figure of speech in which one noun or attribute  is replaced by another that is closely associated with the replaced thing.

Explanation:

When a particular name or attribute or concept is replaced or substituted by another but the meaning remains the same, it is called as metonymy.

for example,

the use of the word "crown" to mean the whole kingdom under the authority of the king or queen, or power.

"society" meaning the people who live in a group etc.

malvolio only loves olivia because he thinks if they get married to olivia he will have a noble title, people to serve him, and fine clothes to wear. also he thinks if they get married he will have many expensive things, and he thinks he will be able to order toby around. malvolio only wants to be noble and boss people around he dose not really love olivia. but viola love for duke orsino is real she really loves orsino.

i think he will fail because he tried to get her to love him and she said oh, you are sick of self-love, malvolio. there is no slander in an allowed fool. so i think she knows what malvolio is trying to do. she knows that he only wants to marry her because he wants to be noble and boss people around so that it why i think she said oh, you are sick of self-love, malvolio. there is no slander in an allowed fool because she new he was selfish.

1, 4, and 5 are all conflicts