The phrasal verb "stand up" is commonly used in both informal and formal contexts, although its informal applications tend to outpace formal ones due to the casual nature of its various meanings. In general, "stand up" can convey the literal action of rising to a standing position or figuratively signify resilience, as in 'stand up to' implying confronting or challenging someone or something. In social contexts, it can also mean failing to meet someone after planning to do so, as in 'standing someone up,' which typically has a negative connotation and is used informally. Moreover, "stand up" can describe the act of supporting or defending a position, especially in phrases like 'stand up for' something, which can be relevant in formal discourse pertaining to advocacy or debate. The versatility of "stand up" across different scenarios and its integration into various idiomatic expressions make it a widely recognized and applied phrasal verb.
A2
Beginner
1. To rise to one's feet from a sitting or lying position.
She had to stand up when the national anthem was played.
I need to stand up after sitting for hours.
2. To defend or support an opinion or the rights of oneself or others.
You have to stand up for yourself in this situation.
He always stood up for what he believed in, even when it was unpopular.
3. To fail to meet someone or keep an appointment, often deliberately.