The fair sex and the fairer sex are variations of an idiom Of pleasing form or appearance An idiom is a commonly used word, group of words, or phrase that has a figurative meaning that is not easily deduced from its literal definition.
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Definition of the fair sex in the idioms dictionary
What does the fair sex expression mean
Definitions by the largest idiom dictionary. The meaning of fairer sex is the female sex Women in general —usually used with the. Women as a group (usually used facetiously).
See examples of fair sex used in a sentence. The word fair is here used in its original sense It is not uniquely applied to women, although this is what the fair/fairer sex has largely come to mean The following is an excerpt of the relevant senses, with only a few each of citations, from the oed regarding all this