A precaution is a measure taken beforehand to prevent something bad from happening. It's like a safety step you take to avoid any risks or problems. Full definition
Make sure to take safety precautions when hanging a hammock from the roof of a porch and consult a professional if necessary. (bhg.com)
This article contains directions for how to perform dry skin brushing properly as well as precautions for those with sensitive skin. (thehealthyhomeeconomist.com)
If you or your partner has food allergies, you should take necessary precautions in avoiding the allergies before affecting your child. (newbornbabyzone.com)