Hi and hello are words that are used for greeting or exclamations. Hi and Hello, are used for beginning a conversion most times.
They are a lot of differences between them, which include the way they are pronounced; hello is pronounced /həˈloʊ/ and hi is pronounced /haɪ/. Hello is used to greet somebody, attract someone's attention, and also used to pick phone calls.
Examples of sentences using the word ‘Hello’ include
1. Hello? Please, what happened here?
2. Hello, why did you do that?
3. Hello? please, who is this?
Hi is used for greeting, and it is mostly followed by short, vague conversation. Hi is informal, and you use it mostly with people that you are familiar with like friends and family. Most times, it is advisable not to say hi on your first meetings.