English dictionary, thesaurus, translations & etymology
FreeDict.com
noun Uncommon

cactus

KAK-tuhs

Cactus (noun) means a spiny, fleshy-stemmed plant, usually leafless, adapted to hot, dry desert climates. Example: “A single cactus sat on her windowsill, needing almost no watering.”

noun
1
A spiny, fleshy-stemmed plant, usually leafless, adapted to hot, dry desert climates.
"A single cactus sat on her windowsill, needing almost no watering."
adj
1
(Australian slang) Broken, ruined, or dead.
"The old washing machine is cactus — time for a new one."

How to use cactus

Learner’s notes

In plain EnglishA spiky desert plant; in Australian slang, "done for" or broken.

Common pairings
prickly cactus cactus garden

Word forms

cacti plural, cactuses plural, cactusses plural, cactus plural

Study it as flashcards or scroll it in Flow — saved to your collection.
Test yourself on “cactus” A quick quiz — meaning, synonyms & usage

Fill the gap

Can you complete this real example?

A single _____ sat on her windowsill, needing almost no watering.

Etymology

From the taxonomic genus name Cactus, coined by Linnaeus in 1752, from Ancient Greek kaktos, originally the name for a spiny thistle-like plant.

Origin: Ancient Greek · First attested 1752

Class of 1752 cactus joined the language around 1752.
See the full Class of 1752 →

Frequently asked questions

What does “cactus” mean?

The word “cactus” means a spiny, fleshy-stemmed plant, usually leafless, adapted to hot, dry desert climates. In plain terms, a spiky desert plant; in Australian slang, "done for" or broken.

How do you pronounce “cactus”?

“Cactus” is pronounced KAK-tuhs (/ˈkæktəs/ in IPA).

How do you use “cactus” in a sentence?

Here is “cactus” used in a sentence: “A single cactus sat on her windowsill, needing almost no watering.”

What part of speech is “cactus”?

Depending on how it is used, “cactus” can be a noun and an adjective.

Where does the word “cactus” come from?

The word “cactus” dates back to around 1752 and comes from Ancient Greek. From the taxonomic genus name Cactus, coined by Linnaeus in 1752, from Ancient Greek kaktos, originally the name for a spiny thistle-like plant.

Is “cactus” a common word?

“Cactus” is an uncommon word in modern English.

How many meanings does “cactus” have?

“Cactus” has 2 distinct senses listed in this dictionary. The most common is: a spiny, fleshy-stemmed plant, usually leafless, adapted to hot, dry desert climates.

Featured in

Definitions: FreeDict original editorial