21 Nouns That Start With "X"
21 curated nouns that start with "X".
Below are 21 nouns that start with "X" in our curated English dictionary. Each entry includes a learner-friendly definition, IPA pronunciation, CEFR difficulty level, and example sentences. Words are sorted by frequency — the most common first. Click any word to view its full dictionary entry with synonyms, collocations, and common mistakes.
Most Common Nouns That Start With "X" (Top 1k)
No top-1k frequency nouns match this combination yet.
Less Common Nouns That Start With "X" (Top 5k+)
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X-ray /ˈɛks reɪ/noun B1
A special light that lets you see through things used hospitals
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Xenophobia /ˌzɛnəˈfəʊbiə/noun C1
A strong fear or hatred of foreigners and people from countries
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Xerox /ˈzɪərɒks/noun B2
A copy made by a photocopier machine originally brand name
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Xylem /ˈzaɪləm/noun C1
The tube-like parts inside plants that carry water and nutrients
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Xylophone /ˈzaɪləfəʊn/noun B2
A musical instrument made of wooden bars of different lengths
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Xanadu /ˈzænəduː/noun C2
An imaginary perfect and beautiful place especially exotic luxurious
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Xebec /ˈzɛbɛk/noun C2
A fast sailing ship used in the Mediterranean triangular sails
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Xenia /ˈzeniə/noun C2
Xenia is an ancient Greek tradition of hospitality where hosts treat guests with respect, generosity, and care. It was not just politeness but a sacred duty and social obligation that bonded host and guest together.
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Xenobiology /ˌzenoʊbaɪˈɑːlədʒi/noun C2
Xenobiology is the study of alien life forms and how life might exist on other planets. Scientists use xenobiology to explore what kinds of organisms could survive in extreme conditions on worlds beyond Earth.
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Xenobiotic /ˌzɛnəʊbaɪˈɒtɪk/noun C2
A foreign chemical substance in a living organism doesn't naturally
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Xenogenesis /ˌzenəʊˈdʒenəsɪs/noun C2
Xenogenesis describes the birth or creation of something fundamentally different from its source.
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Xenograft /ˈzɛnəɡrɑːft/noun C2
A piece of tissue or organ moved from animal one species
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Xenolith /ˈzɛnəlɪθ/noun C2
A piece of rock from one place that got stuck inside rock
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Xenophile /ˈzɛnəfaɪl/noun C2
A person who loves foreign cultures and things from countries
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Xeriscape /ˈzɛrɪskeɪp/noun C2
A style of gardening that uses plants needing very little water
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Xeroderma /ˌzɪrəʊˈdɜːmə/noun C2
A medical condition where the skin becomes very dry scaly
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Xerography /zɪˈrɒɡrəfi/noun C2
A dry method of making copies of documents using powder
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Xerophyte /ˈzɛrəfaɪt/noun C2
A plant that can survive and grow in very dry environments
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Xylograph /ˈzaɪləɡrɑːf/noun C2
A picture or design carved into wooden block used prints
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Xylology /zaɪˈlɒlədʒi/noun C2
The scientific study of wood including its structure characteristics
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Xylose /ˈzaɪləʊs/noun C2
A natural sugar found in plants that is used food products
How to Use Nouns That Start With "X"
Nouns that start with "X" can act as the subject, object, or complement of a sentence. Pay attention to whether each noun is countable or uncountable — countable nouns take "a/an" and have plural forms (cat → cats), while uncountable nouns (water, advice) do not. The CEFR badge on each card tells you when learners typically meet the word; A1-A2 nouns are essential for everyday conversations, B1-B2 are common in news and writing, and C1-C2 nouns appear in academic and specialised texts.
Longest Noun That Start With "X"
Xenobiology is the study of alien life forms and how life might exist on other planets. Scientists use xenobiology to explore what kinds of organisms could survive in extreme conditions on worlds beyond Earth.
Frequently Asked Questions About Nouns That Start With "X"
- How many nouns that start with "X"?
- Our curated dictionary lists 21 nouns that start with "X", each with a definition, IPA, CEFR level, and example sentences. The list grows as new entries are reviewed.
- What are the most common nouns that start with "X"?
- Our dictionary does not yet list common Top-1k nouns that start with "X". Browse the full list above for available entries.
- What is noun?
- A noun is a word for a person, place, thing, idea, or quality. Nouns are the building blocks of every sentence and act as subjects, objects, or complements.
- What is the longest noun that start with "X"?
- The longest noun that start with "X" in our dictionary is "XENOBIOLOGY" (11 letters). Tap the word to see its full entry.