The phrasal verb 'blow up' is predominantly used in informal contexts, though it can appear in formal contexts related to technical discussions, such as in engineering or when discussing mechanical failures. It carries several meanings, making it a versatile term in English. In informal settings, 'blow up' is commonly used to describe a situation where someone loses their temper or reacts very angrily, as in "He blew up when he heard the news." It can also mean to inflate something with air, such as "We need to blow up the balloons for the party." Within formal or technical contexts, 'blow up' might be used to describe an explosion or significant failure, often with machinery, as in "The engine blew up during the test." Additionally, in both casual and formal language, 'blow up' can refer to something becoming larger, more intense, or more significant, such as "The issue blew up overnight." Its flexibility and applicability to both physical and metaphorical scenarios contribute to its broader use.
B1
PreIntermediate
1. To explode or to cause something to explode.
The car blew up after the driver hit the wall.
The demolition team blew up the old building to make space for the new one.
2. To inflate something with air.
Can you blow up these balloons for the party?
The kids blew up the beach balls before heading to the pool.
3. To become very angry suddenly.
He blew up when he heard that his project was canceled.
She blew up at her brother for breaking her toy.
4. To become successful or popular, especially very quickly.
The band's song blew up and topped the charts within weeks.
His video blew up overnight and gained millions of views.