✋Catch sb’s attention:
to make someone notice you, especially because you want to speak to them or you need their help:
She waved to attract the attention of the waitress.
While I was driving , the construction sign caught my attention.
✋Catch a cold
to get sick with a cold (a minor respiratory infection).
I'm feeling a little bit under the weather, I think I've caught a cold.
✋Catch/get a disease
(also contract a disease formal)
He caught the disease while travelling in Africa.
Do as the instructions order, always wear a mask if you don't want to catch any deseases in the hospital atmosphere.
Catch sb red-handed /
✋Catch sb in the act
to discover someone doing something wrong or illegal at the moment they are doing it.
“I caught my daughter red-handed trying to take money out of my purse.”
“George was flirting with another woman at the bar, and his wife caught him in the act.”
✋Catch sb’s eye:
to make eye contact, or to attract attention.
“I caught her eye and smiled.”
“This painting caught my eye because of its bright, lively colors.”
✋Catch a flight
be in time to get on a plane
They caught a flight that night to Frankfurt.
Sara had been stuck in trafic jam and was late for the check in, she could catch her flight though.