Used and loved by millions

Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

good through

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "good through" is correct and usable in written English.
It is typically used to indicate the expiration date of an offer, coupon, or promotion, meaning it is valid until that date. Example: "This coupon is good through December 31st, so make sure to use it before then."

✓ Grammatically correct

News & Media

Travel

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

When I'm asked how I'm doing now, I say "Real good!" through clenched teeth.

News & Media

The New Yorker

It's been good through all tides".

The offer is good through March 31.

News & Media

The New York Times

The offer is good through October.

The rate is good through Dec. 23.

The program is good through April 15.

The deal is good through Feb. 28.

The prices are good through March 31.

Montreal rates are good through April 30 , 2001

(Hours good through Labor Day; after that, call).

News & Media

The New York Times

It is good through the fall at most places.

Show more...

Expert writing Tips

Best practice

When stating the expiration date of a coupon or offer, use "good through" followed by a specific date to avoid ambiguity. For example: "This discount is "good through" December 31, 2025".

Common error

Avoid using "good through" when you actually mean the offer is valid after a certain date. "Good through" specifies an end date, not a starting date.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

88%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "good through" functions as a prepositional phrase that modifies a noun, adjective, or another phrase. It typically indicates a timeframe or duration for the validity of something. Ludwig AI confirms its correct and usable status in English.

Expression frequency: Common

Frequent in

News & Media

48%

Travel

31%

Science

8%

Less common in

Academia

5%

Formal & Business

5%

Encyclopedias

3%

Ludwig's WRAP-UP

The phrase "good through" is a common and grammatically correct way to indicate the expiration date or period of validity for something. As shown by Ludwig, it's frequently used in news and travel contexts to specify the duration of offers or promotions. It's important to use it correctly to avoid ambiguity, specifying the end date of validity. If you're looking for alternatives, phrases like "valid until" or "expires on" can serve as effective substitutes.

FAQs

What does "good through" mean?

"Good through" indicates the last day that something is valid or effective. After that date, it is no longer usable.

What is an alternative to saying "good through"?

You can use alternatives such as "valid until", "effective until", or "expires on".

How do I use "good through" in a sentence?

Use "good through" to specify the expiration date of a promotion, coupon, or agreement. For example, "This offer is "good through" the end of the year".

Is it correct to say "good thru" instead of "good through"?

While "good thru" is a common abbreviation, "good through" is the more formal and grammatically correct option, especially in professional writing.

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

Editing plus AI, all in one place.

Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.

Source & Trust

88%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Most frequent sentences: