Definition of fourth
- shifted into fourth
- watched fireworks on the Fourth
cut the cake into fourths
She drank a fourth of the bottle.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fourth.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: number four in a series
: one of four equal parts of something
: the fourth forward gear or speed of a car, truck, etc.
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