retention

noun

re·​ten·​tion ri-ˈten(t)-shən 

1

a

: the act of retaining : the state of being retained

b

: abnormal retaining of a fluid or secretion in a body cavity

2

a

: power of retaining : retentiveness

b

: an ability to retain things in mind

specifically : a preservation of the aftereffects of experience and learning that makes recall or recognition possible

3

: something retained

Examples of retention in a Sentence

the recruitment and retention of good employees

the retention of profits from all sales

pills to offset water retention

the retention of things learned in school

They say the herb promotes memory retention.

Recent Examples on the Web

Player retention is never going to dominate headlines like player acquisition during college’s version of free agency, but TCU head coach Sonny Dykes has stuck to his vision of wanting the Horned Frogs to be a developmental program. —Steven Johnson, Fort Worth Star-Telegram, 12 Jan. 2026

Consistently high sodium intake may contribute to elevated blood pressure, fluid retention and bloating. —Daryl Austin, USA Today, 11 Jan. 2026

Lowers Heating Costs Because covered windows improve heat retention, your furnace or heat pump doesn’t have to work as hard, lowering your heating bill in the process, says HVAC expert Tamer Sayed. —Louise Parks, Martha Stewart, 10 Jan. 2026

Under the current merit-selection system, the governor chooses justices from among nominees recommended by a commission of lawyers and citizens; new justices stand for retention election after the first year and every eight years thereafter. —Ruth Marcus, New Yorker, 10 Jan. 2026

Word History

Etymology

Middle English retencioun, from Anglo-French, from Latin retention-, retentio, from retinēre to retain — more at retain

First Known Use

14th century, in the meaning defined at sense 1a

Rhymes for retention

• attention
• contention
• convention
• declension
• detention
• dimension
• dissension
• distension
• extension
• intension
• invention
• laurentian

Kids Definition

retention

noun

re·​ten·​tion ri-ˈten-chən 

1

: the act of retaining : the state of being retained

2

: power of retaining

3

: something retained

Medical Definition

retention

noun

re·​ten·​tion ri-ˈten-chən 

1

: the act of retaining: as

a

: abnormal retaining of a fluid or secretion in a body cavity

retention of urine

retention of bile

b

: the holding in place of a tooth or dental replacement by means of a retainer

2

: a preservation of the aftereffects of experience and learning that makes recall or recognition possible

Legal Definition

retention

noun

re·​ten·​tion ri-ˈten-chən 

1

: the act of retaining or the state of being retained

2

: the portion of the insurance on a particular risk not reinsured or ceded by the originating insurer