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Be careful with that glass—it’s very fragile.
The speaker is advising someone to handle something gently to prevent damage.
taking care to avoid potential problems or mistakes
She was careful not to spill the coffee on the carpet.
She acted cautiously to prevent an accident.
He made a careful plan before starting the project.
His plan was detailed and well-thought-out.
Often used with 'about,' 'with,' or 'not to' to specify the action being avoided.
Use 'careful' with prepositions like 'with,' 'about,' or 'not to' to clarify what you're cautioning against. For example: 'Be careful with your words' or 'Be careful not to wake the baby.'
As an adjective, 'careful' usually comes before the noun it describes (e.g., 'a careful driver') or after linking verbs like 'be' (e.g., 'She is careful').
From Middle English 'curful,' meaning 'full of care,' derived from Old English 'caru' (care) + '-ful' (full of).
Commonly used in advice or warnings. Often paired with modal verbs like 'be,' 'must,' or 'should.'