good until

USAGE SUMMARY

The phrase "good until" is correct and usable in written English.
It is typically used to indicate a time limit or expiration for something, such as an offer or a product's freshness. Example: "This coupon is good until the end of the month, so make sure to use it before then."

✓ Grammatically correct

News & Media

Travel

Sports

Business

Health

Opinion

Lifestyle

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

It's good until 2013.

The New York Times - Books

It was good until it wasn't.

The New Yorker

"I felt good until I got hit.

The New Yorker

Which is good until it isn't.

The New York Times

The fares are good until December.

The New York Times - Travel

All was good until we got home.

The New York Times - Health

"What's a Good Until?" Carole asked.

The New York Times

The offer is good until Jan . 24

The New York Times

The deal is good until Dec. 14.

The New York Times - Travel

These rates are good until Dec. 31.

The New York Times - Travel

Sounds good, until you do the math.

The Guardian - Opinion

Expert writing Tips

Best practice

When using "good until" to specify an expiration date, always include the full date (month, day, and year) to avoid ambiguity. For example, "This offer is good until December 31, 2025."

Common error

Avoid stating only the month and day when using "good until", as it can lead to confusion about which year the offer or validity applies to. Always specify the year to ensure clarity.

Linguistic Context

The phrase "good until" functions primarily as a prepositional phrase that modifies a noun or pronoun. It indicates a temporal limit or expiration date, specifying the period for which something remains valid or effective. As Ludwig AI confirms, this usage is both grammatically correct and widely accepted.

Expression frequency: Very common

Frequent in

News & Media

45%

Travel

15%

Sports

10%

Less common in

Business

10%

Health

5%

Academia

5%

Ludwig's WRAP-UP

The phrase "good until" is a common and grammatically correct way to indicate the expiration date or the period of validity for something. Ludwig AI confirms its usability across various contexts, including news, travel, and business, as well as scientific contexts. The analysis reveals that it functions as a prepositional phrase to specify a time limit. When writing, it's best to specify the full date to avoid ambiguity. Related phrases include ""valid until"", ""expires on"", and ""effective until"". Be aware of the slight difference between "good until" and "good through", as the latter usually includes the stated date. The consistent usage and clear meaning make "good until" a reliable choice for expressing time-sensitive information.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

valid until

Replaces "good" with "valid", emphasizing the legal or official acceptance until a certain date.

expires on

Focuses on the termination date, indicating when something is no longer usable or effective.

effective until

Highlights the period during which something is in effect or operational.

in effect until

Similar to "effective until", emphasizing the duration of something's active state.

remains active until

Stresses the continuation of activity or functionality until a specified time.

is usable until

Specifies that something can be used up to a certain date, implying a functional limit.

available until

Indicates the period during which something is accessible or obtainable.

stands until

Emphasizes the duration of a decision, rule or agreement.

holds until

Similar to "stands until", stressing the continuation of decision in a certain amount of time.

in force until

Implies legality of a decision or an agreement until a certain time.

FAQs

How can I use "good until" in a sentence?

Use "good until" to indicate the expiration or validity period of an offer, coupon, or item. For example, "This coupon is "valid until" July 31st" or "The special price is "available until" next week".

What are some alternatives to saying "good until"?

Alternatives include "valid until", "expires on", or "effective until". The choice depends on the specific context. For instance, "valid until" might be used for official documents, while "expires on" is common for perishable goods.

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

"Good through" is often used interchangeably with "good until", but it typically implies that the stated date is included. For example, if something is "good through July 31st", it's generally understood to be valid throughout the entire day of July 31st. Meanwhile, if something is "good until July 31st", it expires at the beginning of July 31st.

What does "COB" mean when it's used with "good until"?

When you see "good until March 30th COB", "COB" stands for "close of business". This means the offer or validity extends until the end of the business day on March 30th, not necessarily midnight. The exact time depends on the specific business's hours.