Union vs With this compound

When to use each in English, with meaning, register, and examples.

Union

Top 2,000 (common)B1noun

With this compound

Beyond 10,000 (less common)
Most common: Union
 UnionWith this compound
Pronunciation🇬🇧 /["/ˈjuːniən/"]/🇺🇸 /["/ˈjuːniən/"]/🇬🇧 //wɪð ðɪs ˈkəmˌpaʊnd//🇺🇸 //wɪð ðɪs ˈkəmˌpaʊnd//
MeaningA group of people or organizations joined together for a common purpose.This phrase refers to something made of two or more parts.
ExampleThe labor union negotiated better wages for its members.We will analyze the properties of this compound in our chemistry lab.
RegisterNeutralNeutral
How commonTop 2,000 (common)Beyond 10,000 (less common)
CEFR levelB1-
Part of speechnoun
Collocationslabor, trade, trades, form, organize, set up, be affiliated to something, represent somebody/​something, negotiate (something), confederation, federation, movement, close, loose, full, create, form, dissolve, union between, union with, civil, legal, holy, allow, recognizeanalyze this compound, create a compound, mixture with this compound, properties of this compound, use this compound
Antonymsdisunion, division, separation-
Common mistakesConfusing with 'unit', which means one part of something., Using 'unions' incorrectly in singular contexts., Mispronouncing the word, especially the 'u' sound.Misuse with uncountable nouns, should be used for countable or plural items., Confusion with 'compounded,' which refers more to creating something new., Overusing in simple contexts where 'with this' might suffice.
Usage notesUsed in contexts like labor unions or political unions. It's appropriate in formal discussions or writing. Avoid using it in casual conversation unless referring to a specific organization.Often used in academic or technical contexts to indicate a mixture of components. Less common in casual conversation.

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With this compound

Frequently asked questions: Union vs With this compound

What's the difference between Union and With this compound?

Union: A group of people or organizations joined together for a common purpose. With this compound: This phrase refers to something made of two or more parts.

Which is more common: Union and With this compound?

Union is the most common in everyday English.

Can you show an example of each?

Union: The labor union negotiated better wages for its members. With this compound: We will analyze the properties of this compound in our chemistry lab.

Can I use Union and With this compound interchangeably?

Not always. Union and With this compound are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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