adv Common

thereof

theh-uh-ROV

Thereof (adv) means of that; belonging to or coming from that thing already mentioned. Example: “The building and the land thereof were sold together.”

adv

Of that; belonging to or coming from that thing already mentioned.

"The building and the land thereof were sold together."

"Members and the rights thereof are outlined in the bylaws."

How to use thereof

Learner’s notes

In plain EnglishA formal way of saying "of it" or "of that".

When to use it

Almost exclusively used in legal or formal writing.

Common pairings

the terms thereof members thereof

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The building and the land _____ were sold together.

Etymology

From Old English thaerof, formed from there plus of.

Origin: Old English

Synonyms

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of it of that of the same

Rhymes for thereof

whereof

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Frequently asked questions

What does “thereof” mean?

The word “thereof” means of that; belonging to or coming from that thing already mentioned. In plain terms, a formal way of saying "of it" or "of that".

How do you pronounce “thereof”?

“Thereof” is pronounced theh-uh-ROV (/ðɛˈɹʌv/ in IPA).

How do you use “thereof” in a sentence?

Here is “thereof” used in a sentence: “The building and the land thereof were sold together.”

What part of speech is “thereof”?

“Thereof” is an adverb.

Where does the word “thereof” come from?

The word “thereof” comes from Old English. From Old English thaerof, formed from there plus of.

Is “thereof” a common word?

“Thereof” is a fairly common word in modern English.

What is the difference between "thereof" and "of it"?

"Thereof" and "of it" mean the same thing, but "thereof" is a formal, old-fashioned word typically found in legal, contractual, or official documents. In everyday speech and writing, "of it" or "of that" is the natural, modern equivalent.

Is "thereof" formal or informal?

"Thereof" is highly formal and is mostly confined to legal, technical, and official writing, such as contracts and statutes. Using it in casual conversation or informal writing can sound stiff or overly legalistic.

What is the difference between "thereof," "therein," and "thereto"?

All three are formal words that combine "there" with a preposition to refer back to something already mentioned. "Thereof" means "of that," "therein" means "in that," and "thereto" means "to that," so the choice depends on which relationship is being expressed.

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