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The groundswell in interest in quality of products and services has created a need for commonly accepted global standards of quality.
What does "groundswell" means in the sentence? Can someone help me?
Comments 
Hello Lucia

A groundswell is a deep movement of the ocean, caused by an earthquake or very high winds.

Here, it's used metaphorically to mean 'pressure from the consumer'.

MrP
GROUND SWELL (noun)
The noun GROUND SWELL has 2 senses:

1. an obvious change of public opinion or political sentiment that occurs without leadership or overt expression
2. a broad and deep undulation of the ocean

Familiarity information: GROUND SWELL used as a noun is rare.