Definition of fall sick
: to become ill Dozens of workers fell sick from exposure to the fumes.
Word by Word Definitions
: to descend freely by the force of gravity
: to hang freely
: to drop oneself to a lower position
: the act of falling by the force of gravity
: a falling out, off, or away : dropping
: the season when leaves fall from trees : autumn
: of, relating to, or suitable for autumn
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