Verb B1 — Intermediate /kənˈteɪn/

Contain — Definition, Examples & Pronunciation

To have inside or include — an important verb for describing contents and composition.

Quick Definition

To contain means to have something inside or to include something as part of a whole.

What Does Contain Mean?

The word contain is one of the most frequently used words in the English language. It appears in everyday conversation, academic writing, news media, and literature at B1 — Intermediate level. Learners who master contain alongside its common collocations and word family will find their fluency improving rapidly.

Understanding exactly when and how to use contain requires attention to context. Many ESL learners know the basic meaning but struggle with the subtle differences between contain and its nearest synonyms. Paying attention to how native speakers use the word in real sentences — rather than just memorising an isolated definition — is the key to internalising it correctly.

The word family built around contain extends its usefulness considerably. Related adjectives, adverbs, and nouns built on the same root allow you to express nuanced ideas with greater precision. When you learn contain, try to also learn two or three related forms so that you can use the concept flexibly across different grammatical contexts.

Example Sentences

SentenceUsage note
She needed to contain in this situation.basic use
It is contain to understand the context.adjective/verb context
The teacher asked students to contain the exercise.educational context

Synonyms

holdincludeenclosecompriseconsist ofencompassinvolve

Antonyms

excludeomitreleaseemitlack

Common Mistakes

Watch Out For

Common mistake: misusing contain without correct grammar pattern.

Correct: always study contain in full sentence context to see how it combines with other words.

Related Vocabulary

All Common Words → Grammar Glossary Vocabulary Hub Flash Cards

Practise This Word

Flash Cards Complete the Sentence Vocabulary Quiz Hangman

Frequently Asked Questions about “contain”

What does contain mean?
Contain means: To have something inside or to include something as a part. It is commonly used at B1 — Intermediate level in English and appears frequently in both spoken and written English.
What part of speech is contain?
Contain is a verb. It describes an action or state. Understanding the part of speech helps you use contain in grammatically correct sentences.
How do you use contain in a sentence?
Here are three examples: 1) 'This is a contain situation.' 2) 'We need to contain carefully.' 3) 'The contain of this process is important.' The word contain works best when you study it in full context rather than in isolation.
What is the CEFR level for contain?
The word contain is at B1 — Intermediate on the CEFR scale. This means it is an important intermediate-level word that appears regularly in B1-B2 exam vocabulary lists.
What are synonyms for contain?
Common synonyms include words that share a similar meaning to contain. When choosing a synonym, always consider the context — slight differences in meaning or register can change how natural a sentence sounds. Practise with LexFizz Flash Cards to learn synonyms efficiently.
What is the opposite of contain?
The opposite (antonym) of contain helps you understand the full range of meaning. Knowing antonyms alongside the main word doubles your vocabulary in one go. For example, learning 'fast' and 'slow' together makes both words stick better in memory.
Is contain formal or informal?
The word contain is versatile and works in both formal and informal contexts at B1 — Intermediate level. In academic writing, you may find more specific synonyms used in its place, but contain itself is entirely appropriate in essays, reports, emails, and conversations.
How do I remember the meaning of contain?
Try associating contain with a vivid image or a memorable sentence. Writing three example sentences with contain and saying them aloud is one of the most effective memorisation strategies. LexFizz's Flash Cards exercise uses spaced repetition to help vocabulary like contain transfer to long-term memory.
What are common collocations with contain?
Collocations are words that naturally appear together. Learning contain as part of a collocation phrase rather than in isolation makes it much easier to use correctly. Study real-world examples in articles, stories, and exercises to build a natural sense for which words combine with contain.
How can I practise using contain on LexFizz?
LexFizz's Flash Cards, Complete the Sentence, and Quiz exercises all feature high-frequency vocabulary including contain. Try the Hangman exercise for a fun way to revise spelling, and use the Word Search to recognise contain quickly in context. Regular short practice sessions are more effective than occasional long ones.