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Lifeline

/lˈaɪˌflaɪn/
C1
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(noun) A line to which a drowning or falling victim may cling.

This road is the lifeline that links these villages to the rest of the world.
This is an economic lifeline for Algeria.
CEFR Practice Quiz
For many small businesses, the new government grant was a vital ____ that helped them survive the crisis.

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