Many students, learners and even native speakers struggle with thursdays vs thursday’s. They look almost the same the only difference is the apostrophe ( ’ ).
But that small mark changes the meaning completely. One is plural (many Thursdays), and the other shows possession (something belongs to one Thursday).
This guide will explain the difference clearly, give easy rules, examples, and common mistakes, and help you never confuse these words again.
Quick Answer: Rule in One Sentence
- Thursdays → more than one Thursday (plural)
- Thursday’s → something belongs to one Thursday (possessive)
💡 Memory Trick:
No apostrophe → plural
Apostrophe + s → possession
Simple Background: Apostrophe Rules
In English:
- Add s to make a noun plural → many cats, many Mondays
- Add ’s to show possession → cat’s tail, Monday’s meeting
This rule works for all days of the week, so thursdays vs thursday’s follows the same pattern.
What Does “Thursdays” Mean?
Thursdays is the plural of Thursday.
✅ Use it when talking about:
- Something that happens every Thursday
- Many Thursdays in general
- Weekly schedules
Examples of Thursdays in a sentence:
- I exercise on Thursdays.
- We have English class on Thursdays.
- Thursdays are usually busy.
Notice: there is no apostrophe.
What Does “Thursday’s” Mean?
Thursday’s is the possessive form of Thursday.
✅ Use it when talking about:
- One specific Thursday
- Something that belongs to or happens on that Thursday
Examples of Thursday’s in a sentence:
- Thursday’s meeting was canceled.
- I am preparing for Thursday’s exam.
- Thursday’s weather will be sunny.
The apostrophe shows ownership or connection to one day.
Correct vs Incorrect Usage Table
| Word | Correct Usage | Incorrect Usage | Notes |
| Thursdays | I study on Thursdays. | I study on Thursday’s. | Plural → many Thursdays |
| Thursday’s | Thursday’s class is fun. | Thursdays class is fun. | Possessive → belongs to one Thursday |
| Thursdays’ | Thursdays’ schedules are full. | Thursday’s schedules are full (if plural) | Rare, plural possessive → many Thursdays owning something |
💡 Tip: If you can replace it with “every Thursday”, use Thursdays.
If you can replace it with “of Thursday”, use Thursday’s.
When to Use Thursdays
Use Thursdays when:
- Talking about repeated weekly events
- Mentioning more than one Thursday
- Writing general schedules
Examples:
- The office closes early on Thursdays.
- We go to the gym on Thursdays.
- Markets are busy on Thursdays.
When to Use Thursday’s
Use Thursday’s when:
- Referring to a specific Thursday
- Showing ownership or connection
- Describing an event on that day
Examples:
- Thursday’s presentation starts at 9 AM.
- Don’t forget Thursday’s homework.
- Thursday’s game was exciting.
✅ Quick Check: If you can say “the meeting of Thursday,” it needs Thursday’s.
Common Mistakes and How to Avoid Them
- Using an apostrophe for plural
❌ I go to the gym on Thursday’s.
✔ I go to the gym on Thursdays. - Forgetting the apostrophe in possession
❌ Thursdays meeting is important.
✔ Thursday’s meeting is important. - Thinking apostrophe always means plural
Apostrophes usually show possession, not plural. - Confusing plural possessive
Thursdays’ = something belongs to many Thursdays
Example: Thursdays’ schedules are full.
Everyday Real Life Examples
Emails:
- I am free on Thursdays.
- Please confirm Thursday’s appointment.
School:
- We have math on Thursdays.
- Don’t forget Thursday’s test.
Social Media:
- I love slow Thursdays.
- Can’t wait for Thursday’s party!
News:
- Thursday’s weather forecast predicts rain.
- Markets are closed on Thursdays.
Short Practice for Beginners
Fill in the blanks:
- I train on ________.
- ________ homework is due tomorrow.
- We relax on ________.
- ________ game was exciting.
Answers:
- Thursdays
- Thursday’s
- Thursdays
- Thursday’s
💡 Tip: Use these mini-exercises to remember the difference quickly.
FAQ: Common Questions About Thursdays vs Thursday’s
1. Is “Thursdays” correct?
Yes, it is the plural of Thursday.
2. Is “Thursday’s” correct?
Yes, it is the possessive form of Thursday.
3. Can “Thursdays” ever have an apostrophe?
No, unless showing plural possession (Thursdays’).
4. Why do people confuse these words?
Because they look similar, and apostrophes are tricky for beginners.
5. Can this rule be used for all days?
Yes. Mondays / Monday’s, Fridays / Friday’s, etc.
6. What does “Thursdays’” mean?
It shows something belongs to many Thursdays (plural possessive).
7. How do I remember the difference?
- Many Thursdays → no apostrophe
- One Thursday owns something → apostrophe + s
8. Is it okay to make mistakes?
Yes! Even native speakers mix them up. Learning the rule fixes it permanently.
Conclusion: Simple Rule to Remember
The difference between thursdays vs thursday’s is small but important.
- Thursdays → plural → more than one Thursday
- Thursday’s → possessive → belongs to one Thursday
💡 Quick Tip:
- No apostrophe → many Thursdays
- Apostrophe + s → belongs to one Thursday
Practice using these examples and mini-exercises. Soon, you will always use the correct form confidently, and never confuse plural and possessive again.
