waistline

noun

waist·​line ˈwāst-ˌlīn 

1

a

: an arbitrary line encircling the narrowest part of the waist

b

: the part of a garment that covers the waistline or may be above or below it as fashion dictates

2

: body circumference at the waist

Synonyms

• middle
• midriff
• midsection
• waist

Examples of waistline in a Sentence

The diet claims it will reduce your waistline in just four weeks.

The dress has a small waistline and a full skirt.

Recent Examples on the Web

Belly fat is linked to a higher risk of diseases such as heart attacks, strokes and diabetes, so doctors recommend that a person’s waistline be no more than half their height. —Bloomberg, Mercury News, 12 May 2025

The high waist can be paired with slim-fitting shirts or cropped sweaters to highlight your waistline. —Jené Luciani Sena, Fox News, 5 Mar. 2025

And this isn’t just a method to shrink your waistline: The pros at Buchinger say that fasting is able to improve your quality of life both now and in the future, acting as a safeguard against aging. —Nicole Hoey, Robb Report, 18 Apr. 2025

Water aerobics may help people—especially women and people over 45—lose weight and trim their waistlines, new research shows. —Kristen Fischer, Health, 9 Apr. 2025

Word History

First Known Use

1857, in the meaning defined at sense 1a

Rhymes for waistline

• affine
• airline
• align
• aline
• assign
• baseline
• beamline
• benign
• bloodline
• bovine
• byline
• canine

Kids Definition

waistline

noun

waist·​line ˈwāst-ˌlīn 

1

a

: waist sense 1a

b

: body circumference at the waist

2

: the part of a garment surrounding the waist

Medical Definition

waistline

noun

waist·​line ˈwāst-ˌlīn 

: body circumference at the waist