upper-bound vs upper bound

Both "upper-bound" and "upper bound" are correct, but their usage depends on the context. "Upper-bound" is commonly used as a compound adjective to describe a limit or maximum value, while "upper bound" is used when referring to a boundary or limit without the hyphen.

Last updated: March 23, 2024 • 643 views

upper-bound

This is correct and commonly used in English as a compound adjective.

Use "upper-bound" when you want to describe a limit or maximum value, such as an upper-bound estimate or an upper-bound threshold.

Examples:

The upper-bound estimate for the project cost is $10,000.
There is an upper-bound limit on the number of participants for the event.

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Expressing the analytical result as an upper-bound level would already result in some cases in a level close to the maximum level even if no PCBs have been quantified.
However, it is not possible to set lower maximum levels taking into account the sensitivity of currently available methods of analysis and the fact that the maximum levels are established as upper-bound levels.
The lot does not comply with the specification if the upper-bound analytical result confirmed by duplicate analysis exceeds the maximum level laid down by Directive 2002/32/EC, taking into account the measurement uncertainty.
The lot does not comply with the specification if the upper-bound analytical result obtained with a confirmatory method and confirmed by duplicate analysis exceeds the maximum level laid down by Directive 2002/32/EC, taking into account the measurement uncertainty.
The difference between upper-bound level and lower bound level shall not exceed 20 % for foodstuffs with a contamination of about 1 pg WHO-TEQ/g fat (based on the sum of PCDD/Fs and dioxin-like PCBs).
upper-bound concentrations are calculated assuming that all values of the different congeners less than the limit of determination are equal to the limit of determination.
Upper-bound concentrations; upper-bound concentrations are calculated on the assumption that all values of the different congeners below the limit of quantification are equal to the limit of quantification.
The concept of "upper-bound" requires using the limit of quantification for the contribution of each non-quantified congener.
The concept of "upper-bound" requires using the limit of quantification for the contribution of each non-quantified congener to the toxic equivalent (TEQ).
'Upper-bound' means the concept which requires using the limit of quantification for the contribution of each non-quantified congener.
The median ROS of 3,48 % or the upper-bound ROS of 6,77 %.
For lower contamination levels, for example 0,5 ng WHO-TEQ/kg product, the difference between upper-bound and lower-bound level may be in the range of 25 % to 40 %.
by adding, for each of the other underlying funds, the subscription and redemption fees plus the best available upper-bound assessment of TER-eligible costs.

Alternatives:

maximum limit
ceiling value
top boundary
highest possible value
maximum threshold

upper bound

This is correct and commonly used in English when referring to a boundary or limit without the hyphen.

Use "upper bound" when you want to refer to a boundary or limit, such as an upper bound on the number of characters in a text field or an upper bound on the cost of a project.