He realized it's important to be careful.

Meaning: The boy understood that it's important to take care to avoid danger or harm.

Choice of Words: Realized means to understand or become aware of something. Careful means taking care to avoid danger or harm.

Alternative Expressions

Related Expressions

• They realized their friendship was important.
• She realized that art could express emotions and tell stories.
• Wolf realized mistake too late.
• She realized the power of words.
• They realized that chasing each other was not a good idea.
• Lion realized mistake and regretted.
• The hunter realized his mistake and left the forest.
• The cat realized it had caused trouble.
• She realized that she wasn't alone after all.
• The wolf was angry and realized it had been outsmarted.