1. to be cautious or careful about something dangerous or harmful
Usage: typically used in imperative form; often followed by ‘of’

Examples

• Beware of the dog!
• The sign warned drivers to beware of falling rocks.
• Beware of strangers offering free gifts.
• You should beware of investing all your money in one stock.
• Beware the ides of March.
• Shoppers should beware of online scams.
• The teacher told students to beware of plagiarism.