major
In Italian, 'maggiore' can be used as an adjective to mean 'major' or 'greater'. It can also be used as a noun to refer to a military officer of high rank. When used as an adjective, 'maggiore' is often used to describe something that is more significant or important than others. For example, 'un problema maggiore' means 'a major problem'. As a noun, 'maggiore' is used to refer to a specific rank in the military, equivalent to a major in English-speaking militaries.
His older brother is very kind.
In this sentence, 'maggiore' is used in the context of describing an older sibling. The word 'maggiore' directly translates into 'greater' or 'major', but when used in familial context, it translates to 'older'.
Rome has a higher population compared with Milan.
In this case, 'maggiore' is used to express comparison between two different entities. 'Maggiore' is used to show that the population of Rome is greater/higher than that of Milan in this context.
The Major Scale is a famous work of art.
Here, 'Maggiore' is part of a proper noun, 'Scala Maggiore'. Translated directly, it means 'Major Scale'. In the context of this sentence, it refers to a famous work of art, highlighting that 'maggiore' can also be used in conjunction with other words to create specific phrases or titles.