Cách sử dụng
The word 'harbinger' means something or someone that shows or signifies an upcoming event or change. It is often used in a figurative sense to indicate a warning or a sign of what is to come. For example, a flock of birds flying south for the winter can be seen as a harbinger of colder weather to come. In other words, it's like an early warning system. This word is typically used in more formal or academic writing, so it may not be commonly used in everyday language, but it is still good to know and understand its meaning.