What Does โBlock sth upโ Mean?
โBlock sth upโ means to stop something from working or flowing by filling or obstructing it completely.
Introduction
The phrasal verb โblock sth upโ is commonly used in English to describe situations where something is clogged, stopped, or obstructed. For example, a pipe might be blocked up by dirt, or a road might be blocked up by traffic. Understanding the block sth up meaning helps learners describe everyday problems related to blockages or stoppages. This phrase is useful because it can refer to both physical blockages, like a sink, and abstract ones, like a schedule or communication. Knowing how to use โblock sth upโ correctly improves your ability to explain issues clearly and naturally in English.
Quick Info Box
- Phrasal verb: block something up
- Type: Transitive
- Level: B1 (Intermediate)
- Short meaning: To obstruct or clog something completely
Structure (Grammar Rules)
โBlock sth upโ is a transitive phrasal verb, which means it always needs an object (something that is blocked). It is separable, so you can say either:
- block something up
- block up something
Both forms are correct, but โblock something upโ is more common in everyday speech.
How to Use โBlock sth upโ?
Use โblock sth upโ when you want to say that an object or passage is being stopped or clogged. It often refers to pipes, drains, holes, or places where something normally flows or moves. You can also use it figuratively, such as blocking up a schedule or communication, but this is less common.
Example contexts include:
- Household problems (e.g., blocked sinks or toilets)
- Roads or entrances obstructed by objects
- Channels or pathways that are clogged or closed
Examples
- The leaves blocked up the drain after the storm.
- Donโt put too much paper in the printer; it might block it up.
- The traffic accident blocked up the highway for hours.
- Hair and soap often block up bathroom sinks.
- The children accidentally blocked up the garden hose with dirt.
Common Mistakes
- Incorrect: The drain block up after the rain.
Correct: The drain blocked up after the rain. - Incorrect: She blocked the up sink with hair.
Correct: She blocked up the sink with hair. - Incorrect: The road blocked up by the fallen tree.
Correct: The road was blocked up by the fallen tree.
Differences / Synonyms
Similar phrasal verbs include:
- Clog up: Very similar in meaning, often used for pipes and drains. Slightly more informal.
- Plug up: Means to fill or stop a hole or opening completely, often with something solid.
- Stop up: Means to block or close something, especially a hole or pipe.
Difference: โBlock sth upโ emphasizes obstruction or stopping flow. โClog upโ often implies a gradual build-up of something like dirt or hair. โPlug upโ usually means filling a hole tightly. โStop upโ is more formal and less common in everyday speech.
Common Collocations
- Block up the drain
- Block up the sink
- Block up the pipe
- Block up the hole
- Block up the road
Related Phrasal Verbs
Here are related phrasal verbs of block sth up:
Real-life Dialogue
Anna: Why is the kitchen sink full of water?
Ben: I think the drain is blocked up again.
Anna: Oh no! Did you try using the plunger?
Ben: Yes, but it didnโt work. We might need a plumber.
Practice
Fill in the blanks with the correct form of โblock upโ:
- The leaves _______ the gutters during autumn.
- Be careful not to _______ the toilet with too much toilet paper.
- The fallen tree _______ the main road after the storm.
- Soap and hair often _______ the bathroom sink.
FAQs
- Q: Can โblock sth upโ be used in a figurative sense?
A: Yes, but it is mostly used for physical blockages. Figurative use is less common. - Q: Is โblock sth upโ formal or informal?
A: It is neutral and suitable for both formal and informal contexts. - Q: Can I say โblock up the sinkโ or โblock the sink upโ?
A: Both are correct. โBlock the sink upโ is more common in everyday speech. - Q: What is the difference between โblock sth upโ and โclog upโ?
A: โClog upโ usually refers to gradual build-up, while โblock upโ focuses on complete obstruction. - Q: Is โblock sth upโ separable or inseparable?
A: It is separable, so you can place the object between โblockโ and โupโ or after โup.โ

