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verb Uncommon

rot

rot

Rot (verb) means to decay or break down through the action of bacteria or fungi. Example: “The fallen apples were left to rot in the orchard.”

verb
1
To decay or break down through the action of bacteria or fungi.
"The fallen apples were left to rot in the orchard."
"Damp wood will rot if it isn't treated."
2
To decline gradually in condition, quality, or morale.
"He felt his ambition rot away after years in the same dead-end job."
noun
1
The process of decaying, or the decayed matter itself.
"There's rot in the window frame that needs replacing."
2
Nonsense; foolish talk (informal, chiefly British).
"Don't talk rot — of course it'll work."

How to use rot

Learner’s notes

In plain EnglishTo decay physically, or (informally, especially in British English) rubbish/nonsense as a noun.

When to use it

"Rot" meaning nonsense ("what rot!") is dated/informal British usage, rarely heard in American English.

Common pairings
start to rot wet rot dry rot talk rot

Word forms

rotted past tense, rots plural, rots singular

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Test yourself on “rot” A quick quiz — meaning, synonyms & usage

Fill the gap

Can you complete this real example?

The fallen apples were left to _____ in the orchard.

Etymology

From Old English rotian, "to rot or become corrupted," going back to a Proto-Germanic root meaning the same.

Origin: Old English

Related words

Rhymes for rot

See all rhymes for rot →

Frequently asked questions

What does “rot” mean?

The word “rot” means to decay or break down through the action of bacteria or fungi. In plain terms, to decay physically, or (informally, especially in British English) rubbish/nonsense as a noun.

How do you pronounce “rot”?

“Rot” is pronounced rot (/ɹɑt/ in IPA).

How do you use “rot” in a sentence?

Here is “rot” used in a sentence: “The fallen apples were left to rot in the orchard.”

What is another word for “rot”?

Words with a similar meaning to “rot” include putrefy and molder.

What part of speech is “rot”?

Depending on how it is used, “rot” can be a verb and a noun.

Where does the word “rot” come from?

The word “rot” comes from Old English. From Old English rotian, "to rot or become corrupted," going back to a Proto-Germanic root meaning the same.

Is “rot” a common word?

“Rot” is an uncommon word in modern English.

How many meanings does “rot” have?

“Rot” has 4 distinct senses listed in this dictionary. The most common is: to decay or break down through the action of bacteria or fungi.

What is the difference between rot meaning decay and rot meaning nonsense?

As a verb and noun describing decay, rot refers to the physical breakdown of matter by bacteria or fungi, or a gradual decline in condition or quality. As an informal British noun, rot instead means nonsense or foolish talk, unrelated to physical decay.

Is "rot" meaning nonsense formal or informal?

The "nonsense" sense of rot is informal and chiefly used in British English, as in an exclamation like "what rot!"

What is the difference between rot and rotten?

Rot is the verb or noun describing the process of decay, while rotten is the adjective describing something that has already decayed or is in a state of decay.

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Definitions: FreeDict original editorial