What Does “Lay sb up” Mean?
“Lay sb up” means to cause someone to rest or stay in bed because of illness or injury. It often refers to confining someone temporarily due to health reasons.
Introduction
The phrase “Lay sb up” is a common English phrasal verb used when someone is forced to rest because they are ill or injured. The “sb” in the phrase stands for “somebody,” meaning a person. This expression is often used in both everyday conversations and formal contexts to describe situations where a person cannot continue their normal activities. Understanding the “Lay sb up meaning” helps learners communicate health-related situations clearly. It usually implies that the person needs to stay in bed or avoid physical activity for a while to recover. Knowing how to use this phrase correctly can improve your English fluency and make your descriptions more natural and precise.
Quick Info Box
- Phrasal verb: Lay somebody up
- Type: Transitive
- Level: B2 (Upper-Intermediate)
- Short meaning: To cause someone to rest due to illness or injury
Structure (Grammar Rules)
“Lay sb up” is a transitive phrasal verb, meaning it requires a direct object (someone). It is separable, so you can place the object between “lay” and “up,” or after the whole phrase.
- Correct: They laid him up for a week.
- Correct: They laid up him for a week. (less common but grammatically possible)
Most commonly, the object is placed between the verb and the particle. The verb “lay” is in the past tense “laid” when talking about past events.
How to Use “Lay sb up”?
Use “Lay sb up” when you want to say someone must rest because they are sick or hurt. It is often used by doctors, family members, or friends to describe a health condition that requires bed rest or limited activity. It often suggests a temporary state rather than a permanent one.
Example situations include: after surgery, during flu, or when recovering from an accident. You can use it in formal medical contexts or informal chats.
Examples
Here are some natural sentences using “Lay sb up in a sentence”:
- The doctor laid her up for two weeks after the surgery.
- His broken leg laid him up for months.
- That flu really laid me up last winter.
- She was laid up in bed with a bad cold.
- The accident laid him up and he couldn’t work for a while.
Common Mistakes
People sometimes confuse “lay sb up” with other similar phrases or misuse the verb tense. Here are some examples:
- Incorrect: The flu lays me up every year. (wrong tense)
- Correct: The flu laid me up last year.
- Incorrect: He was laying up after the injury. (wrong form)
- Correct: He was laid up after the injury.
Remember, the past tense of “lay” is “laid,” and “lay sb up” is usually used in the past or perfect forms when talking about completed events.
Differences / Synonyms
Similar phrases include “put sb to bed,” “confine sb,” or “bed rest.” However, “lay sb up” specifically emphasizes causing rest due to illness or injury, often temporarily.
- Put sb to bed: More general, can mean just sending someone to bed.
- Confine sb: More formal, can mean restricting movement for any reason.
- Bed rest: A noun phrase, describing the action or condition rather than the verb.
“Lay sb up” is more commonly used in everyday English to describe health-related rest.
Common Collocations
This phrasal verb often pairs with words related to health and time:
- Illness: The flu, cold, infection
- Injury: Broken leg, sprain, fracture
- Time periods: Days, weeks, months
- Places: Bed, home, hospital
Examples: “The injury laid him up for three weeks,” or “She was laid up at home with the flu.”
Related Phrasal Verbs
Here are related phrasal verbs of lay sb up:
Real-life Dialogue
Here is a short conversation using “lay sb up”:
Anna: How is your dad doing after the fall?
Ben: Not great. The doctor laid him up for two weeks with a bad sprain.
Anna: I hope he gets better soon.
Ben: Me too. He’s really frustrated being stuck in bed.
Practice
Fill in the blanks with the correct form of “lay sb up”:
- Last winter, the severe cold ______ me ______ for almost ten days.
- The doctor ______ her ______ after the surgery.
- His broken arm ______ him ______ for several weeks.
Answers: laid up, laid up, laid up
FAQs
- What does “lay sb up” mean? It means to make someone rest because of sickness or injury.
- Is “lay sb up” formal or informal? It can be used in both formal and informal contexts.
- Can “lay sb up” be used in the present tense? It is rarely used in the present tense; past and perfect tenses are more common.
- Can I say “lay me up” about myself? Yes, it is common to say “The flu laid me up.”
- Is “lay sb up” separable? Yes, you can place the object between “lay” and “up.”

