valid since

USAGE SUMMARY

The phrase "valid since" is correct and commonly used in written English.
It is often used to refer to the period of time during which something has been considered valid or relevant. Here are a few examples: 1. The contract was valid since the date of its signing. 2. The offer is only valid since it was advertised on our website. 3. The warranty is only valid since the date of purchase. 4. This method of payment has been valid since our company was founded. 5. The rule has been valid since the start of the season.

✓ Grammatically correct

Science

News & Media

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

This expression is not valid, since it is true for some relations but false for others.

Encyclopedia Britannica

Kevin Gardner, a senior director for global responsibility communications at Walmart, believes the comparison is not valid, since Walmart is a retailer only, not a manufacturer.

The Guardian

The home office does not accept it as valid since the number of dependants coming will tail off as the issue of work vouchers is reduced.

The Guardian

The new Civil Code in Romania, valid since 1.10.2011, introduces a set of legal regulations regarding the contracting procedures by the use of electronic means.

Procedia - Social and Behavioral Sciences

Condition and promise are alike valid, since both are in furtherance of the national purpose for which the money is appropriated.

Cornell University

However, when it comes to AM process, these methods are no longer valid, since the design freedoms which may have a great impact on sustainability are always neglected.

Journal of Cleaner Production

Such quasi-steady method is generally valid since the tested aerodynamic damping ratios, though scattered, roughly meet the quasi-steady formulae.

Journal of Wind Engineering and Industrial Aerodynamics

But the opposition claim that this concern is no longer valid since they began to fight ISIS, and have renewed their call for military support.

Independent

However, none of the permissions, whether issued by the high court, the ministry, or the state, were legally valid since they ran afoul of the Forest Conservation Act and the Wildlife Protection Act.

The Guardian

The fundamental question of trust remains valid, since the ongoing perjury trial of Chris Cairns, the former New Zealand captain, in London has cast another uncomfortably revealing shard of light across an alleged culture of corruption.

Independent

That said, your deeper question is valid: Since laws and regulations vary from country to country (and from state to state, city to city), how much of a guide do they provide for ethical living?

The New York Times - Magazine

Expert writing Tips

Best practice

Use "valid since" to clearly establish the period from which a statement, rule, or condition has been in effect or considered true. This is especially useful in legal, scientific, and historical contexts where precision in time is crucial.

Common error

Avoid using future tenses with "valid since". The phrase indicates that something has been valid from a specific point, not that it will be valid. Use past or present perfect tenses to maintain grammatical accuracy.

Linguistic Context

The phrase "valid since" functions as an adverbial phrase indicating causality or justification based on a specific starting point in time. It connects a current state or condition to a past event or date that serves as the reason for its validity. This is observed across numerous Ludwig examples.

Expression frequency: Very common

Frequent in

Science

41%

News & Media

36%

Formal & Business

9%

Less common in

Encyclopedias

2%

Wiki

1%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "valid since" is a grammatically sound and frequently used connector that establishes a cause-and-effect relationship based on a specific starting point in time. As Ludwig AI confirms, it effectively communicates that something has been true, applicable, or legitimate from a certain date onward. Predominantly found in scientific and news contexts, "valid since" maintains a neutral register, suitable for a wide array of communications. When using this phrase, ensure that the tense is consistent and that you are referencing a point in the past, not the future. Alternatives such as "justifiable since" or "legitimate since" can be used to provide subtle shifts in meaning.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

justifiable since

Emphasizes the defensibility or warrant for something from a particular time.

legitimate since

Highlights the lawfulness or conformity to standards from a given moment.

applicable since

Focuses on relevance or suitability from a certain point onward.

operative since

Stresses the active or functional state from a specified date.

effective since

Underscores the commencement of influence or impact from a specific time.

in effect since

Similar to "effective since" but emphasizes ongoing enforcement or practice.

in force since

Highlights the legal validity and enforceability from a certain period.

good since

Indicates acceptability or reliability from a specified date.

sound since

Emphasizes the robustness or logical consistency from a certain time.

tenable since

Focuses on the maintainability or defensibility of a position or argument from a specific time.

FAQs

How do I use "valid since" in a sentence?

The phrase "valid since" connects a condition or statement to a starting point in time. For example, "The warranty is valid since the date of purchase" or "This regulation has been valid since 2010".

What are some alternatives to "valid since"?

You can use alternatives like "justifiable since", "legitimate since", or "effective since" depending on the context. These options provide similar meanings while varying in emphasis.

Is there a difference between "valid since" and "in effect since"?

While similar, "valid since" emphasizes the truth or correctness of something from a certain time, while "in effect since" highlights the operational or enforceable nature of something from that time. The best choice depends on the specific context.

Can I use "valid since" to describe future events?

No, "valid since" is used to describe conditions or rules that have been in effect from a specific point in the past up to the present. To describe when something will begin being valid, use phrases like "will be valid starting" or "effective from".