fifties Definition

fifties
plural noun

1. The period of time between one's fiftieth and sixtieth birthdays.

Example: David is in his fifties
Form: one's fifties
2. The range of temperatures between fifty and sixty degrees.

Example: It must be in the fifties today
Form: the fifties
3. The period of time between the fiftieth and sixtieth years of a century. Also as adj.

Example: born in the 50s
Example: a fifties hairstyle

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fifty
noun fifties

1a. The cardinal number 50;
1b. The quantity that this represents, being one more than forty-nine, or the product of ten and five.
2. Any symbol for this, eg 50 or L. Also in compounds, forming adjectives and nouns, with cardinal numbers between one and nine.

Example: fifty-six
3. The age of fifty.
4. Something, especially a garment, or a person, whose size is denoted by the number 50.
5. A set or group of fifty people or things.
6. A score of fifty points.

adj

1. Totalling fifty. Also in compounds, forming adjectives, with ordinal numbers between first and ninth.

Example: fifty-fourth
2. Aged fifty. See also fifties, fiftieth.

Etymology: Anglo-Saxon fiftig; see five + -ty.