Englishfor English speakers
four
Determiner
—
(ordinal fourth) The number 4. Four is one more than three and one less than five.
We have four fingers and one thumb on each hand.
four
Noun
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The number 4.
Two and two is four.
thirds
noun
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(legal) The third part of the estate of a deceased husband, which, by some local laws, the widow was entitled to enjoy during her life.
system
Noun
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A group of things that work together; a way of doing something.
This coloured paper is part of my system for keeping lists of people.