first-aid knowledge
nounUK /ˌfɜːstˈeɪd ˈnɒlɪdʒ/
US /ˌfɜːrstˈeɪd ˈnɑːlɪdʒ/
Knowing what to do to help someone who is hurt or sick before a doctor comes.
Her first-aid knowledge helped her put a bandage on her friend's scraped knee.
OTHER MEANINGS
2. The things you learn in a first-aid class, like how to clean a cut.
He used his first-aid knowledge to wash the cut and cover it.
3. Knowing who to call and what to say when someone needs help fast.
Thanks to her first-aid knowledge, she called for help right away.
4. Understanding how to stay calm and help during a small accident.
His first-aid knowledge kept everyone calm when the ball hit the window.