student asking question

What does "lifeline" mean?

teacher

Native speaker’s answer

Rebecca

"Lifeline" in this scenario means something that is considered extremely important to maintain quality of life or protection. In this scenario, Uber is staying in business because of food deliveries; these food deliveries are their lifeline. Ex: Her cellphone is her lifeline. She doesn't leave home without it. Ex: The internet has been a lifeline for many during this pandemic.

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